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Originally Posted by bigdavecox90 From what I know you can port your number onto say O2 PAYG. This may take around 3-5 days. I believe once you have your new sim, you can ask for a PAC code instantly. Therefore you may have to wait another 3-5 days roughly and transfer your original number back onto T-Mobile.  |
Porting a number takes 48 hours. To activate an O2 Pay as You Go SIM you need to top up a minimum of £10.
As I advised earlier each network has a different minimum commitment so the OP will need to do some research.