Shocking Customer Service

I bought my Chery J2 Swag from the Boksburg branch in March 2016. Soon after I started experiencing problems with my GPS system. The system kept on bombing out for no reason or would just not open up. With my car's 2nd service they ensured me they will update the software and all will be sorted. The problem still persisted. I proceeded to take my car back numerous times where they sent it to CRS for updates and still the problem continues. I took my car back once again on the 6th of January 2017 where they took out the SD card and only after 6 weeks of me constantly phoning them did I get my SD card back. Still the GPS system does not work. I took my car in yet again where the entire radio / gps unit was inspected and I was told a warranty claim will be processed for a new radio as the entire radio is faulty! This was in April. The branch since then has closed down and I had to take my car in to a different branch for them to yet again assess the unit for the warranty claim. Once again i struggled to get hold of them via phone calls and e-mails. Again I was told no warranty claim was loaded. In fact a warranty claim for my steering was processed ?? I returned with my car for what felt like the millionth time on November 4th and was told that someone would get back to me on the Monday to confirm that the claim has been processed. After numerous e-mails I FINALLY received an e-mail from them today (14th November), 10 days later, stating that there is no claim on the system! They are also unsure as to who the person was I spoke to on the 4th of November.

I have been struggling to sort this problem out for close to 16 months now.

My car needs to be booked in for a service. But how can I trust Chery with a service if something as simple as a warranty claim can not be processed??

I find this to be absolutely disgusting and shocking service.