talk taxi birmingham review: overcharging 1

I took a taxi at 17.15 from the N.E.C in birmingham on sun 6th feb to city centre, the driver charged us 38pounds, we checked and discovered the fare should be 15-17 pounds. We have a talk talk receipt signed by the driver with his phone number, it is M Faza, [protected]. please help. I can send you photocopies. We also got a taxi next day from our hotel in shirley to N. E. C.We were charged 17 pounds for a fare which we believed to be 10. We were not dropped at front of centre and had to walk a long distance. this company was T.o.a taxis . many thanks . Susan Roper. smhttp://www.youtube.com/watch?v=b2sUV7jW2O0&feature=relateder@hotmail.com