Virgin SIM only connecting to T Mobile network

[PhoneGeek]

virgin runs throught t-mobiles system, you are getting the full service from virgin, its just it displays t mobile on older phones, if it really bothers you udating the software of the phone will give you the latest provider list, including o2-uk instead of btcellnet, and t-mobile instead of one2one.

[inderinderinder]

I think you hit the wrong button mate.. (new topic, instead of reply)

:p

[richardm]

Thanks to Ollie.
If its exactly the same as Virgin then I think its best to leave it alone, don't want to mess it up somehow or make it unuseable back in Thailand.
Many thanks.