Payment after finished contract

[Emilia19]

Hi I moved my number to other service but still got charged for full month. Can someone explain how it works when I had to pay my first bill before I even started using o2 service and how to get in touch with o2 if my o2 app doesn’t work anymore ? 

[TallTrees]

Hi there @Emilia19 

Welcome to the o2 Community forum 

All service companies want to charge up front monthly. 

Check with o2 customer services here 

You need to contact O2.
Message them on Social Media. Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) or give them a call on 202 or 0344 809 0202