Increase of movie bill

[Eviepearson10]

I was informed that my mobile phone bill would increase in during the start of the new tax month in April. However, I payed £52 in April, then I jumped to £59 in March and now has jumped to £60? I have not changed anything on my contract nor have I gone over a spending cap (as I don't have one) just confused why I keeps going up and why I haven't been informed?  Also when I add up for bills on the sky mobile app it comes to a total of £57? So that's also very stange. I have tried to contact sky but no response. I also haven't come to the end of my 'discount deal' so definitely not that either. If anyone could help that would be great?!?

[Daniel0210]

@Eviepearson10 

We obviously can't see your bills. Compare it to a previous one to see where it differs. It usually involves roaming charges, sending chargeable picture messages, calls to non-inclusive numbers or a discount ending.