top up a sim

[pf44]

I have a sim in my gate which needs a top up

There doesn't seem to be a space where I can enter the number to be topped up

Have done many times before but can't today

[pgn · Accepted solution]

Web top up site for O2 lets you enter any number (so be careful):

https://myo2payg.o2.co.uk/webtopup