Internet Connection charges using T-moble phone abroad

I didn't realise what to do so my question is empty. I recently upgraded to a Nokia 6500 to be able to connect my laptop to the internet when abroad. I was in Tenerife and successfully connected to the internet to pick up my web mail. I had a message from T-mobile to say they would charge £7.50 per megabyte as internet connection abroad was not part of my web n walk allowance. After a week my phone seized up without warning. When I managed to contact T-moble using my wife's phone I was told that my account had been suspended as I had exceeded my credit limit of £500. In the first instance I didn't know I had a credit limit of £500 but I am glad I had some sort of credit limit otherwise I would have run up a bill double that. There was no warning that I had run up such a large bill and there was nothing to tell me how much I was using despite the fact that I was getting message to tell me how much of my monthly phone allowance I had left. I think this is a ridiculous situation. Why did I not know that OI had such a high credit limit? Why was I not given some warning that I was running up such a bill and why are charges so high abroad?

Alan,

We had exactly the same problem in Tenerife as you. We bought one of those stick USB'S for connecting to the internet and hardly used it. Like you, T Mobile contacted us when we had spent £350 but we had used it for approximately 15 mins per day and would have carried on.

These are crazy prices and users need to be warned of what is going on. We were told that one way of keeping a tag is to go as pay-as you go because you can then buy a certain amount of credit but I reckon we would have paid about £50 per day.

Other people need to be warned about this. Best to leave the sticks at home and go to an internet cafe.