VERY BAD SERVICE FROM KANDUA Marketing Services Company

I have used their services once for the repair of a small mini-fridge. They sent me a technician who came in a van with the writing "WE REPAIR" on it. He said that there was no problem in repairing and we agreed that I would pay him R750 once he finishes. After I paid the next day I had to complain again to Kandua for a defective repair. It took more than 10 days of continuous complaints before they sent the same technician, who, after fiddling around for a while, said that now it was OK. I took his word and put beer and wine bottles to the value of R450 at least. The fridge worked non stop, becoming like a deep-freeze and all the bottles exploded in it. This happened in mid August 2020. Ever since I was complaining non stop both by sending emails as well as over the telephone. The least I asked was to get my money back, because the technician they sent was totally *********** and a *****. Kandua was promising that they would organise this and were sort of communicating with the technician asking him to return the money. Of course nothing happened! I am not exaggerating by telling you that I complained hundreds of times with no results whatsoever. CAN YOU HELP PLEASE?