Paying off a device plan as a surprise gift?

[ducklady]

I'd like my husband to be able to upgrade his phone though he still has an outstanding balance on his current phone and wants to have that paid off before upgrading.

Is there a way I can pay that off for him as a gift so he would own the phone and can then choose a new one for himself? I could obviously tell him what I had planned but would prefer it to be a surprise!

He pays through our joint bank account though as I'm not the account holder for his phone I'm unsure if this would be possible.

Thanks.

[MI5 · Accepted solution]

@ducklady 

You would need to know the account security details and call O2.

You can reach the Payment Management team on 0800 902 0217.
The opening times are:
Monday to Friday – 8am to 8pm
Saturday – 8am to 6pm
Sunday – 9am to 6pm

[ducklady]

Thanks very much! I do know his security details so will get it sorted.