INCORRECTLY BILLED

Multichoice has been charging me for extra view for the past couple of months despite my specific instructions asking them to cancel it... Instead of reversing/paying me back the money that they charged me for a service(Extra view) i asked to be cancelled all i get is an apology????????????? I Don't want a ****** STUPID apology i want you to revise my statement and deduct the extra view money that i was *****ULANTLY charged!!!!!!!!!