Bad service

I bought a motorbike battery from Ultimate bikes in Randburg. I also spoke to the mechanic about my bike and the issues I have. He told me to bring it in and leave it with him for diagnostics and repairs. I agreed, but with the covid happening, I only returned on 2nd of February. I did however keep in contact with them reminding them that I will bring the bike as requested. On the 2nd February, I asked someone to help me with transporting the bike to their work shop, only to find a aggressive/angry mechanic, telling me that he does not work on project bikes and this bike is too old. He refused help and so I turned back home, feeling insulted and angry. In my opinion, they go back on their word and are not willing to help. The repair shop has no interest in helping customers.