Incorrect bill amount

[Taz10]

Hi, I recently spent £400+ paying the remainder of the phone contract off, opting for a sim only monthly deal to keep the cost down. Since clearing, I paid one lots of my £16 monthly charge & have now been billed for the second month, which is coming out at £23. There is no way of me finding a breakdown. I can’t understand what the extra £7 is. It’s not a big deal, but it defeats the idea of paying an expensive deal off, to then have inconsistencies in my monthly pays. 

Please clarify. 

[Bambino]

@Taz10 See if anything here helps: How do I get to the 'Download Bill' page? (o2.co.uk)

[MI5]

@Taz10 

This looks like something you’ll be able to do or check in the My O2 app. We have a guide to help with that if you’re unsure how to use it Guide: How-to guide for My O2 And don’t worry if you get stuck because there’s an in-app messaging service you can use to chat with O2 who can help. Just go to the ‘Support’ tab and ‘Start a Conversation’ at the bottom.

If you still need help then the Social Media teams will be on hand, just send them a message on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG)

Thanks