Nowadays, craze for mobile phones is increasing as nearly everyone has a mobile phone. A mobile network operator, supplier of wireless communications services, manages the entire essential elements to sell and deliver various services including customer care, to its customers. Customer care services offer you relief by dealing with your complaints. If you want to get services of new network operator, want to cancel the service of previous network operator, facing any difficulty with your network, recharge your services, or want to inquire about any network operator, recent promos, service centers, dealer shops, and call problems then you can call at that network operator’s customer care contact numbers.

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Your one call to customer care will help you in getting rid of your problem. So you need to keep the network operator’s customer care contact numbers handy as whenever you require, you can use it. Some useful network operator’s customer care contact numbers are given below for your convenience.
O2 Network Operator:
O2 is one of the leading providers of mobile and broadband services in the UK. It offers non-voice services, such as media messaging, text, music, games, and video, as well as data connections through GPRS, HSDPA, 3G and WLAN. O2 offers various easy access numbers for getting its online services.
Join O2: If you want to join O2 Consumer mobile phone sales, then you can call at 08442 02 02 02 from any phone; but remember, dial charges 5p /min will be applied. Its opening hours are Monday – Friday: 08:00 – 21:00; and in Weekend: 09:00 – 17:00.
In O2 Business sales, if you want to order less than 10 phones, call at 0800 089 0202 free service whereas to order more than 10 phones you have to contact O2 Account Manager or need to send your details so that you will be contacted later on and charges will be applied. Its opening hours are Monday – Friday: 09:00 – 17:00.
To join O2 Broadband sales, dial 0800 380 0402 for free service from any phone. Its opening hours are Monday – Friday: 08:00 – 21:00; and Weekend: 09:00 – 17:00. For more information, visit at service.o2.co.uk.
O2 Wallet: If you have any queries about your O2 Wallet and O2 Money Account Card including spending, sending, or transferring money message, then you can call at the O2 Money card services:
From your O2 mobile, call at 10202 free service.
From any UK phone, call at 0844 701 0202 charges apply.
From another country, call at +44 1928 898802 International rates apply.
Keep in mind its opening hours: Monday to Friday: 08:00-21:00; Saturday: 08:00-20:00; and Sunday: 08:00-18:00. For more information, visit service.o2.co.uk.
O2 Business Support: If you want to check network coverage, analyze your bills or get help from an O2 Guru, then you can call to O2’s Customer Service Team on 0800 977 7337 or just dial 8002. For more information, visit www.o2.co.uk.
O2 Friends: It offers you to talk with your friends for half price. You need to select the phone numbers of your three friends, and pay £4.99 a month to get 50% off on everything such as texts, pictures, videos, and the whole lot. Call at 2425 free of charge from your Pay & Go mobile phone to set up O2 Friends. You can get the same offer, if you contact at 2425 from the phone with your O2 SIM to set up three friends for PAYG customers. For more information, visit www.o2.co.uk.
Voicemail 901 service: You need to call at 1750 from your mobile to switch on your Voicemail 901 service, and call at 1760 to switch ‘off’ the service. Once voicemail is active, you can access the full service menu by calling at 901 from your mobile that includes your O2 SIM and entering your pin code. For more information, visit service.o2.co.uk.
PAYG Top-up: You can access to the top-up service by calling at 4444 for free from your mobile or 08456 062 277 from a landline. Visit www.o2.co.uk, to get more information.
T-Mobile Network Operator:
T-Mobile UK serves over 16 million customers in the UK. It offers the best choice, best value, and best network experience in the country and also customers get instant access to everything, everywhere. sometimes, It requires expanding the capacity of existing base stations also it is making new ones to deal with increasing demands.
Text 150: You can text HELP to 150 from your T-Mobile phone to check your latest balance and allowance, top up or to make a payment. You can also change your price plan or add boosters without speaking to someone.
Text ‘AL’ to 150 from the phone that includes T-Mobile SIM to check your allowance.
Text ‘BA’ to 150 from your T-Mobile phone to check your balance.
Text ‘CR’ and 4 digits of your credit/debit card to 150 from the phone with your T-Mobile SIM to top-up and to make payment.
For more information, visit support.t-mobile.co.uk/.
Voicemail: if you want to set up voicemail service, then call at 222 from your mobile and follow the instructions. Visit support.t-mobile.co.uk, for more information.
If you want to join T-Mobile, then call at 0800 956 3089.
Dial 0800 956 2208 to query an online order.
If you need help, then call 150 from your mobile phone, and call 0845 412 5000 from a UK landline. If you are living in a foreign country, then call +44 7953 966 150.
Orange Network Operator:
Orange is one of the more up-to-date and forward-thinking networks in UK. It desires to become the best-loved communications brand of UK. It offers products like Android and Windows Smartphones as well enhanced services such as live travel cameras and 3G data services to its customers that become useful part of modern life. It is doing business in fair, ethical and respectful way to be greener, giving its time and money to good reasons and keeping its customers secure when they are online.
PAYG Services: You need to call at 450 from Orange pay, between 08:00 – 22:00 for getting PAYG Services. If you are using another phone, then call at 07973 100 450 as well as if you live in a foreign country, then call at +44 7973 100 450.
PAYG credit check: To discover how much remaining credit and allowances you have, call at 453 from your Orange phone.
Account Team Assistance – If you are facing problems in logging in and need help, then call at 439 from your Orange phone, the cost 25p will be applied from Orange PAYG SIM that will vary on other lines. Call at 07973 100 439 from another phone or if you are out of the country, dial +44 7973 100 439. For more information, visit help.orange.co.uk.
Orange Directory Enquiries: To get access to numbers in the UK and Ireland, call at 118000.
Text Message Alerts: To start or stop receiving Orange text message alerts, call at 277 from your Orange phone.
Orange Answer Phone: Call at 123 from your Orange phone to listen your mobile phone messages, record a personalized greeting and more.
Orange Traffic Information Service: call at 177 from your Orange SIM phone to get the traffic news, delays and more.
Home Phone Voicemail: After setting up of voicemail, call at 1571 to get access to Orange Home Phone and landline’s voicemail, get back voicemail that are accessible from your Home Phone.
Second Line Voicemail: You will get access to a secondary voicemail on a different phone by calling at 120. For more information, visit help.orange.co.uk.
Vodafone Network Operator:
Vodafone has been offering mobile phone services in the UK from the 1980′s. It helps users in setting up their phones for Web and WAP browsing, media-messaging and email. It provides products and services that allow positive monetary, social and ecological outcomes for its stakeholders worldwide with the trust of making a sustainable future.
Join Vodafone: Call at 08080 408 408 for joining Vodafone.
Customer Service:
If you are facing some problems in personal/business account management, then you can contact Customer Service center. You need to call 191 from your Vodafone SIM-laden phones and PAYG customers can call 191* from a Vodafone mobile to get help.
Call at 08700 700191 to pay monthly customers calling from another phone and call 08700 776655 for PAYG customers calling from another phone.
You can call +44 7836 191 191 to pay monthly customers calling if you live in a foreign country, and call +44 7836 191919 for PAYG customers calling if you live in a foreign country.
Visit help.vodafone.co.uk, for more information.
Three Network Operator:
Three Network is intended for the mobile internet so users can email, browse and download quickly and easily on their Three phone. It is one of the fastest growing networks that serves over 97% inhabitants in the UK. Users become able to see their usage and balance and manage their primary services whenever and wherever you want with the help of My3, a free service that can be accessed from iOS and Android phone or computer.
Customer Service: Call on 0843 373 0500 for upgrading your Mobile Broadband.
If you have problem about your phone or SIM contract, then call 333 at free from a Three phone or 0843 373 3333 from any other phone to contact its customer care service, and upgrade or cancel your contract.
Call on 500 at free from a Three phone or 0843 373 0500 from any phone to get assistance about your Mobile Broadband contract.
If your mobile has been lost or stolen when you are travelling in a foreign country, then you can call at +44 7782 333 333 within seven days of returning to the UK or within 30 days of finding out. In other case, you can call the above listed number for inquiry about your lost or stolen. For more information, visit support.three.co.uk/.
Bill payment: Three offers its customers many different ways to pay their bill. They need to set up a Direct Debit or a regular debit or credit card payment, or they can select the option of paying bill from phone.
Call at automated payment system by dialing 400 from Three phone or 0844 338 0317 from any other phone for free. If you have made call from other phone, then 5p per minute charges will be applied from a BT landline but other networks may differ. For more information, visit support.three.co.uk.
Top up & Adds on: Once you have purchased a top-up voucher, you can call 444 at free from your Three phone and select “Buy an Add-on” to get add on. For more information, visit support.three.co.uk/.
AT&T Network Operator:
AT&T is connecting users to their world and everywhere they live and work from innovative smart-phones to next-generation TV services and complicated solutions for multi-national businesses. It is offering new, trustworthy, high-quality products and services and excellent customer care. AT&T U-verse offers many cool features and capabilities. AT&T is the merely national U.S. TV service supplier and provides a 100-percent IP-based television service.
Bill pay: Call at *729 from your wireless phone. If you are Spanish customers, then make your call at *72427. You can call 1-800-331-0500 or 611 from your wireless device to make a payment but you may be charged for a processing fee for that. For more information, visit www.att.com/esupport.