Unprofessional and ****py BMW-PMB services

The worst car service I have ever received, I sent my car for diagnostic and service in their Pietermaritzburg branch 3 weeks back, I have not yet received my car as yet. I first have to called them 2 days later to get quotation only to find that they had not attended the car at all. Next day they did and never called to give me quotation, after they eventually did tell me the issues they did not order parts or even call me to give me an update I had to call them 1 day later and that only went they decided to order parts... Thereafter a week went by and they was no communication from them. Eventually I followed up and that's when they told me the car would be ready by last week Thursday for collection or Friday latest (03/05/24). They never contacted me to tell me there not ready until I called them rusted on Friday. The person I spoke to said there were sorry but the car would be definitely be ready for collections on Monday, that did not happen at all and again no communication until I followed up on Tuesday. When I called on Tuesday there are saying the car is functioning well however it is not ready for collections coz it has an issue with light bulb related to a clutch issue, a problem that it did not have when I send it to them, and they are proposing giving the car back with this issue. To say Iam frusted is an understatement. And to think that I have to pay them more than 50k for this bad service is just upsating. Even today they are saying my car is not ready. And I don't know even when. I just want my car as at this point I no longer even trust their competency. I will definitely be taking them to the ombudsman for this ****. Should my car be in a bad condition and be forced to pay for ****py job