This probably sounds like a silly question but my contract with o2 expires early September and I'm thinking of moving to T-Mobile, can I sign up to T-Mobile next month when I put in the request to cancel my o2 contract??

- now she's on simplicity with 200min 400txts for £10pm which is a £5 discount compared to normal and in a month when the phone she wants is in stock she can phone them to get the standard pay monthly contract with the above mins/txts for £15pm which is a £10 discount compared to online and the free phone. Not bad for her first upgrade deal