Annoyed, angry and dissapointed

I am so dissapointed at tracker after all this months we had a good relationships until this month on the 1st when they debited again when they already debited on the 25th of Aug. The agreement was R199 plus R39 per month I got an email not even a call from a consultant to explain why they are increasing my instalment I cannot and I won't pay tracker like I am paying for insurance. I have send several emails with no response now I get a funny email saying they won't be tracking my car and I am in arrears, what arrears I don't know because my debit order was successful I have never skipped a month now I know why people are not happy with this company they went into my bank account and debited without my consent and I and won't leave this lying down I want ombudsman to know that tracker is robbing people now I paid and they say they won't track my account anymore if not i will reverse also the Aug payment and if they hand me over my legal team will sort them out and their communication skills sucks they don't respond to emails.