Disgusting Treatment of customers

Very unprofessional and disgusting customer service and a total *******. On the 15.01.2022 I went to Midas Midrand for a spare which cost me R625 when I got back to the mechanic the first thing he asked was if the spare was secound hand. The sales man at Midas only checked if the size was right and nothing else when I bought the part. When the mechanic tried fitting the spare he found it to be faulty. I then proceeded to Midas to return the item. Which after some debate they said they will replace it. But only on Monday.i collected the part on the Tuesday and on Wednesday my mechanic came in to fit it costing me a further call out fee. Once again the part is not right. When we took it back on 20.01.22 an Indian guy behind the counter was extremely rude and has no way of speaking to customers. When we asked for his name he refused to give it. He told us to get another guy's name and contact details and he is advised the mechanic was doing something wrong and we must wait for 2 weeks as they will send the part back to the supply for assessment. And on top of all that when I went to collect the part they charged me R700 instead of what I paid originally R625. It looks like they are selling reconditioned parts.If this is not resolved ASAP and I am not waiting weeks I will report this to the consumer protection commissioner.