dont let them touch the tools they will break it een more!!!!

We have a brush cutter that worked great for almost two years. We usually do our own service but I sent it in recently for a major service and a repair to worn parts. R1600 we got it back, my gardener(same one since we got the machine) started working with it but complained that the wire holding hub was worn and letting the wire come out. I went and bought a replacement one he worked again but for a short while and complained it was losing power and then didn't want to start. took it back Ryobi quoted another R1600 plus to repair as the piston burned out. FUNNY FIRST TIME THEY SERVICE THE MACHINE AND IT BURNS OUT. Finnaly get a hold of someone Thulani to assist and he tries to blame my gardener. we using the same oil as always the same gardener same petrol station same mixing canister and the fuel has the same color as always from the mix but some how it breaks after they worked on it. phone numerous times to speak to Thulani to sort it out but not getting any feedback. worst after sales service ever.