Worst service from Tracker

I have recieved the worst service from Tracker . I did the tracker in August and since then have given me the worst service . They do not debit my account so I contact them to find out wat had happened and they said i was on direct deposit . So they changed it to a debit order . Then i called back and asked the to change it back I will do the payment monthly . They Tracker agreed . I asked them wat is outstanding and they said R179 , which i did and then on the 12 i recieve a letter stating i must pay R304.30 and i called to find out and they said no i dont owe anything i must ignore tge email. Then on the 16th I recieve and invoice for R193.14 which is not the agreed upon amount of R179 . I called to find out wat is wrong and the rude consultant told me that it is a anunal increase . Then on the 23rd of September they made to unauthorised debit order on my account for R304.30 and R372.14 . I have only started in August if they decided to debit my account for R179 for August and for current month it would be R358 , why would the do 2 debit order of R304.30 and R372.14 . I am so upset and no one can help me , they will have some contact me in 48 hours time and cancelations is 5 to 7 working day . I have not given any authorisation to debit my account and they did.