Bad customer service

Good day,

I would like to report bad customer service I received from Midas Queenstown. I bought a truck battery for R1130 on Thursday 1st November. I brought the battery back to Midas the following Monday morning 5 November 2018 as it was faulty.

They tested the battery on their machine. The machine indicated replace battery.

They refused to give me back my money saying the thread is damaged. I requested my old battery back and my money. They only gave back my old battery but not the money. They owe me R1130 as I have returned their faulty battery.