Can't Top Up

[Anonymous]

Hi, 

Brand new phone, picked it up today - I can't seem to top up. I've received texts from o2 etc, so the sim seems to be activated, but I've had payments from two different cards declined. Have I missed a step in set up?

[Kellie2]

Wow it would make sense for O2 to put this on the cover for the sim, literally all it says is to top up online or via the app. Maybe a simple, must use a voucher first time. Would have been useful to know this whilst in the shop.

Thank you for your comments, shame O2 haven't been as helpful.