Poor customer care: Car returned without battery

So a trusted friend referred Forsa to me, praising that she got the best service there. I then took our car that had mixed oil and water and affected the engine. At first I called to ask how much I would be charged for diagnostics. Jacques said I shouldn't worry about thay they wouldn't charge me anything to see what the problem is but they need to strip the engine, which I was aware of. First it took them a week to touch my car and this is after I called multiple times to ask what the status is and explained that I needed to know what was needed of me before they could do anything as I was low on cash. He told me not to worry. About two weeks later, I am told they need to replace the engine. I explained to him that the car already cost me a lot so my money is not enough we can arrange for repairs later. Only then I verbally get told I need to pay R3500 for stripping. Without complaints I do so, asking to pay R500 within two weeks as I only had R3k at the moment. As promised I pay timeously. When we fetched the car, it was a mess, it smelled and they left it outside, unlocked with the keys inside. Nobody met our tow guy to ensure that the car was returned safely. Upon arrival, the car had no battery. When I asked, "oh it's here in the charger". So we asked then to return it. Months passed until the battery died. Then Jacques offered to give me a little cash for a s**** battery that will probably last 2 months. I accepted as receiving a dead battery was worse and thought I could jusy supplement to get a new battery. I was last told to send my account details. Haven't been reimbursed till date and when I call or whatsapp I get blue ticked or the line is busy which I suspect they might've blocked my numbers.

I am even wondering if I got treated this way because I am black. I have been polite and civil this entire time but a line has to be drawn. Poor poor customer service.