Bad service from cartrack

Still the bad service from Cartrack... Im now in my second week with them about a service fee of R600 that they say i must pay. This is after the unit that they repaired in one of my cars that was not working for longer than 4 months ( this is the "NEW" unit). I did report it to them just after a month that the unit is not updating on my app. Then again i did fight for 2 weeks for them to come and replace the unit ... After they did replace the unit now they want R600 for call out and maintenance.. I never stop my debit order ever since i installed the units in all my cars. ( Even when it was not working for that 4 months ) I loged several tickets that they must investigate that they can take that 4 months that the unit was not working (@R180 a month) for the maintenance fee. And then i still give them R120 for free....

Today "Zanele" emailed me and told me my services is suspended, i wil not receive any notification from Cartrack or wil be able to open my app, nor to position my car .

Then again the monthly instalment was payed and till this day i never skipped any monthly instalment ..

Every time the account department phone me a tell them i don't give them permission to debit my account for that R600, then again yet they did try to debit it and i did dispute the debit order because i did not give them permission to take the R600.

For 2 weeks i must explain to every person in the accounts department what is going on, and they say they will log a ticket. But then again tomorrow someone els phone me.

I did ask to speak to a supervisor and one of them told me that the supervisor don't speak to the customers..

I want a manager to phone me that know what to do... I don't want any other person working there to phone me...