@KawneetFull details of the tariffs on pay as you go are here:
https://www.o2.co.uk/shop/sim-cards/pay-as-you-go#simtype=bigbundlesYour first top up needs to be done by voucher from a shop, after that you can register it online and top up online as well.
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iPhone 16 Pro Max - o2 and Spusu
Xperia 1V - Spusu
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This is not customer services and we dont have access to your account
I do not work for o2 or any VMo2 /Telefonica/Liberty Global Company