Why have just got a larger bill from EE??

[ynneL]

That's probably something you should be contacting EE about unfortunately nobody here can help you with network billing issues you can dial 150 to contact EE support team

[Blessed4life]

Try setting up a zero cap on your account, so you won't get any surprises (extra charges) at the end of the month.

[JAMES4578]

More details on the spend cap here https://ee.co.uk/help/mobile/manage-use/pay-monthly/set-up-and-manage-spend-cap 

However no one on the community would have detailed information, you would need to contact EE. I take it this was a significant increase.