cartrack has been Debiting morethan what we agreed for, our agreement was that I'm going to pay R285 each month but on the 26 February they debit R185

cartrack has been Debiting morethan what we agreed for, our agreement was that I'm going to pay R285 each month but on the 26 February they debit R185.90 28 February R319 02 March R164.10 04 March R19 25 March R59 27 March R59 total of R816 iv been calling them to rectify their mistakes they say it is now fixed but they keep on debiting morethan what we agreed on this is a bad service