3G, short for ‘Third Generation’, is a mobile phone blog affiliated to but independent of Three.
How to Contact 3G by Phone
If you have a Three phone, then ring 333 for the 3G customer service number. If you are using a phone from another company, the 3G telephone number is 0333 338 1001. Phone +44 7782 333 333 if you are calling from outside the UK. Lines are open from 8am to 8pm from Monday to Friday, and between 9am and 6pm at the weekend.
Other Ways to Get in Touch with 3G
To contact 3G Customer Services over the internet, go to 3G. Contact options on this page include a live chat which is available 24 hours a day, seven days a week. You can also get in touch with Customer Services on Facebook and Twitter [both @ThreeUK].
Finally, you can write a good old-fashioned letter to: Three Customer Services, Hutchison 3G UK Ltd., PO Box 333, Glasgow G2 9AG.