Bad after sales service and bad service from managers even

I bought a tablet at Makro Vanderbijlpark in January. Kept the box in pristine condition as the tablet as well. Then after a few months it started to open apps randomly. Factory restored a few times but did not help. Took the tablet in to Makro and they said it needs to be send in for repairs. After 3 weeks and also phoning then which the person gave a **** name and never came back to me I went in to see if its ready. They only reloaded the software but then one of the soft keys doesn't suddenly work. Took it back 30 min later to hear it needs to go back AGAIN. Now another 3 weeks later same thing. You phone to talk to some random guy that does not exist there because one he doesn't phone back and he gives a **** name. Second i spoke to a Roenelle one of the managers which would have given my number to a Shaun Deysel did also not phone back. This is a joke no service or after sale service at all