Bad Service with no knowledge of the cars

They failed me and I hate their service my car was over heating then I paid all necessary fees they charge me but on top of that they were breaking my thing I costed about R2500 amount of things they broke, they did not end there they lost my key and do a bakkie key whit completely not match to my key on other side my car was having a lot of issues after they change top I took it to other machenic who just listened on it and new what they did wrong . There I tried to get hold of the management but they refused because they know the damage they cause in my Vehicle. I DONT KNOW THEY DONT CLOSE IF THEY DONT WHAT THEY ARE DOING FOR WHOLE 2 MONTHS I DONT HAVE A CAR THEN THEY BRING ME SOMETHING I DONT EVEN RECOGNIZE MXM