Payment through app and websites keep failing

[Sandra12]

Anyone else having problems making a card payment through the app or website? it did it last month and because i have multiple accounts for my kids it was a nightmare and took over 2 hours of repeatedly trying and then 1 payment didn't end up going through and now iv tried to pay today and its let me pay the airtime but not the device plan, its not the bank as iv tried using multiple cards different banks! I get paid 4 weekly and money sent at different times from kids so direct debit isn't an option for me but this is getting really frustrating 

[pgn]

Using the website, @Sandra12 - 

https://accounts.o2.co.uk/signin

Go to "Bills and Current Charges", and then to "Change Payment or Address Details":

Then add your card into this section:

And when you switch back to the app to pay:

Then you see:

And you should be fine to pay either one or the other (or both portions, one after the other in any order) there. And your card details are stored, only you need to enter the 3-digit CVV code (or four if using AmEx) each time you pay.

If that does not work, then a call to O2, on 202  or 0344 809 0202 (or specific Payment management number - 0800 902 0217 ), will be required to pay and to add your card details to the "Your Wallet" section for future payments, @Sandra12.

Good luck!