on 31-03-2020 00:52
on 31-03-2020 01:11
If you ordered online it's possible that the order didn't go through or a credit check was failed. The only way to be certain is to call customer service. 8am is probably the only time you will be able to get through to them without hours of frustration.
Guide: How to find help & contact O2
You can also call customer service for free on 0800 032 1402 or by using Skype. The Skype app is also free to download. Best time to try to get through is 8 am.
https://community.o2.co.uk/t5/Off-Topic/A-Guide-To-Skype/m-p/1305104