Cannot resolve an Issue fully, but quick to phone should you skip a payment

They are quick to phone you within 24hours should you skip a payment, but it takes them 2 weeks to resolve a clients issue. I complained here and on facebook as the request from 2 agents never got answered before something was done. I spoke to numerous agents from accounts and stated i will pay the account once Cartrack resolves my issue and replaces my electronical items(battery and starter) that suffered damage as a result of their unit draining my battery. Received a call from a very rude agent in technical last week to schedule a booking for saturday and to add the technician only arrived an hour later(not his fault as he advised the office about the time he will only be able to arrive) Now today i get a message about legal action and listing me as a bad payer, yet they still have not resolved the complete issue even after saying i will pay once the full issue has been resolved. i feel that this is pathetic service from cartrack as they are quick to phone for a R160, but when their unit causes damage as a result of a current draw that drains a battery flat overnight to an amount of R1800(battery and starter), they drag their feet to resolve the issue. I do hope to hear from Cartrack by close of business today regarding the way forward in resolving the issue completely as replacing the unit with another one that draws a lower current isn't fully resolving the issue completely