WAP Volume

Hi there, I use Tmobile and on the mobile data usage section of my bill I seem to have a lot of usage and the same time, almost every hour of the day. Almost as if it connects to the web every hour at the same time the volume level is 0.86.

Does anyone know why this is appearing on my bill at all?

Have you set your phone up for mobile email? If so, its worth bearing in mind that some handsets have an automatic polling feature. This allows the handset to connect at regular intervals to check for new emails. If you don't go into the email settings & change this to a setting that allows you to control when the handset does this, it can work out to be quite costly.
Have you set your phone up to receive RSS feeds from websites that you regularly visit using the handsets wap browser? Again, this will generally allow info to be sent to your phone at regular intervals.