mobile networks e.g. T-mobile 15 per minute?

[The Kid]

Hi...I was wondering...how comes when mobile networks e.g. says 15p per minute...it isn't 15p per minute...because when I call and use less about 30 secs or so it charges like 20 pence...or isit just me that thinks this??

 

[sk8r_lass]

Call 150 and change your price plan