This may sound strange posting on an Audi foum, but I was wondering if there was someone in the know. Me and my brother have gone half's and bought mum a new mobile for Christmas (the one she has now is years old!) It suddenly dawned on me (after buying the phone) that it takes a micro-SIM card. I bought the new phone on the same network - so there shouldn't be any issues with locking. My question is, will Orange transfer her number to a micro-SIM if she is on PAYG? - She has had the same number and SIM card since 1998! I have tried calling Orange / EE but cant get any tech support without knowing my mums security codes.etc Cheers!