BAD SERVICE PROBLEM STILL NOT FIXED

Had a problem with my bike tried to start it and no spark. I took the bike to Big Boy Fourways and was told that they tested the stator and that this was not the problem they then took a computer box from another bike to test and had to order me one. After another week I phoned and then was told that all my wires underneath the ignition was burnt out and this also burnt out the stator and computer box that they now will have to replace, at my cost. I requested a quotation and was told that this will cost me R3500 to fix, when I complaint about the fact that I have to pay for something they burnt out, I was told that they can remove the parts and I can come fetch my bike as they want it out of there shop. I had not option but to pay the bill. The very first day I drove my bike it was jerking and had no power. I phoned them to fetch the bike and received it back the very same day, drove home and the bike was still jerking. I phoned and complain about this and ever since all I have been receiving from them is promises that they will fetch my bike. When I phone and I am told they are not available to take my call. I have to now take my bike some where else to fix. DONT TAKE BIKE THERE