Hi, I have just got my bill trough the door and its 190 pounds for the month i dont normaly look at the bill because its normaly the same 30 odd pound a month on flext 35 in my package i have unlimted internet usage and its saying im being charged 150 pound for using the internet, when i have it in my package I dont know what to do becuase i dont want to pay that high bill when i shouldnt have to, and at the minute Tmobile accounts are down and i have to ring back tommorow im furious

I would be too. If you pay by direct debit, I would cancel it to make sure they don't help themselves to all that extra money. Then phone them and tell them they have it wrong. They may cut your phone off if you cancel debit, but at least it is easier than trying to get the money returned. I didn't realise that all those texts these companies send you, you know the useless information about the weather, were being paid for by you, the customer. Apparently you have to specifically opt out when you sign your contract, though there is really nothing to say so. I queried my son's bill for text messages because he is mentally retarded and cannot read and write. That's how I found out. Absolutely disgraceful what some of them get away with. I would never have a contract phone again.

I had this and ended up with a bill for over £300 because of mobile data - I also had unlimited access in my plan.

Have you always accessed the internet on your mobile, or is this something you've only just started doing?

If it's a new thing for you, the problem is, that although it's included in the plan, it is always subject to fair usage policy. What constitutes fair usage will vary and you should clarify this - typically, fair usage with mobile data will be a lot lower than you might get on an unlimited home package for example. As I recall, with T Mobile the fair use policy allows for 1GB a month - which is in the small print. From what I can remember they dont charge you initially if you go over it, but they may adjust your plan or your access options if you go over by a lot or regularly. You said you don't normally look at the bills - maybe you have inadvertently been using more than this over recent months without realising it, and it's possible they have now adjusted your plan to cover some of this. It is very easy to use up 1GB in mobile data format - do you access regularly, look at photos, or listen to music/video online etc? Even just opening the Facebook homepage can eat up quite a bit of data if there are a number of images on it.

I've known a few people who have also had this problem and I have to say they have not been able to get around it and have had to just pay the bill because they will block your phone until you do. I ended up having my internet access disabled so I could not even be tempted to use it if I wanted to!

It's always possible that they've made a mistake, so it's always worth ringing ... hope it gets sorted out!