No resolution in over 3 weeks

I have been having issues with my DSTV Now app on my HiSense smart TV and I contacted HiSense and explained my issue to them which they sent me some troubleshooting steps to follow which did not work. I did respond and they have asked me to submit certain documents before they can send out a technician to come have a look at my TV however I have still not received any feedback regarding this and this was over 3 weeks ago. HiSense responds to emails 4 to 5 days later sometimes you need to follow up with them for feedback. I have been deling with Tshepiso Mogotsi and Neo Khoboko. This has left a really bad taste in my mouth and I doubt I'll purchasing any HiSense products going forward.