minimum time on o2 PAYG before porting?

[Nealio]

my contract with T-mobile is up and I want an upgrade/change but they cant offer me anything like as good a deal as third parties can on a new contract so I want to take a new contract with T-mobile but keep my number.

I want to do the double shuffle number port to o2 PAYG, then back to T-mobile, but I've read there may be a minimum time you are required to stay on o2 before you're allowed to port away again?

 

[Nealio]

would't it be easier just to transfer to t-mob payg and transfer back to contract? save the hassle of the going between 2 networks.

No more or less hassle either way is it? Still have to do exactly the same things.

Also, I've just ordered a free o2 PAYG sim, dont know if T-mobile do free ones?