Rolling plans

[Sam12346]

Can I use my top up money to buy a rolling plan

[pgn]

@Sam12346 - 

Joining Rolling plans

If you're new to O2, you'll need to visit an O2 store or order online to get a free Rolling plan sim.
If you're already an O2 Pay As You Go customer you can switch to a Rolling plan, and keep your existing sim and phone number, by logging onto My O2.

https://www.o2.co.uk/help/pay-as-you-go/rolling-plans

Good luck!

[Oxonian]

If you have already got funds on your PAYG account @Sam12346, you might want to utilise it by signing up for a Big Bundle initially :-  

Big Bundles: Eveything you need to know – Help and Support | O2

https://www.o2.co.uk/help/pay-as-you-go/big-bundles

You can then switch to a Rolling Plan, with its slightly more generous data allowances, using the same PAYG SIM, once your existing credit has been utilised ! 👍