No Customer Service, only money

Cartrack feels nothing for their Customers or to retain business, only to exploit people. I informed them I am no longer to afford my package as I lost my job and wanted to go for a cheaper package - sure no problem but it will cost R350.00 and a new installation. I've been with them for 5 years - that means nothing. Miss a payment date and they call 10 times a day, sms, email and WhatsApp, they don't even read their messages properly. I conformed at 11h30 I made a payment and send the PoP. That afternoon I get a message when am I paying and can they process a debit order on the same WhatsApp message. The Customer service is pathetic. Now they want to charge me R100.00 cancellation fee. I've requested 3 times now for details of the Ombudsman - no reply so that I can dispute this. They threaten me they will process the debit order for the R100.00 - they do not have my authority. I also requested where did I sign and agree to paying a cancellation fee? No reply! Please don't do business with a Company that does not care about Customers or service...only money.