Recent mobile bill

[Disco2]

Looking to see why a mobile bill has gone up £10 in a month? 

[Anonymous]

@Disco2 Have you had any call charges not covered by a call plan?

Has a discount period on a data plan ended? 

Were you late paying a bill and had a late feeling added?

Have you purchased extra data at any point in the billing period?

You need to look at this bill and your last bill and see what's changed.