Angry 😡 customer

I took my car for a service on the 4th May 2022, they promised to call me and give me a quote, i never get a call till i call them back around 4pm and they told me that the service wont be completed on the same day. They gave me a quote with some additional extra cost, the services was +-R 4600 , and with the additional fees, the total quote went up to R8 817, I accepted the quote, later on they further told me that their new globe/ that they fitted in in my car was not working and they suspected that it was due to the fact that my car was involved in an accident , so they wanted to strip the car and see why the globe was not working, however in order for them to do that and fix the damage, I was requested to pay R4000 more on top of the R8 817, I asked them not to strip the car, I asked them if they reduce the price from the R 8 817 by the amount of globe they included in the quotation, Charles said that was not possible because it was already included on the job card and they cant take it back, my point is why was I charged for something that its not working on my car, which value does that globe add to my car, whether they changed it or not, it does not make any difference, I feel ******, I also felt some sort of ************** I stood there by Charles's desk for 45 minutes, He ignored me and help other clients that came after my arrival, He requested me to show a proof of payment when I told Him that I made payment through EFT (I made payment on Friday-06th May 2022 and the collection of the car was on the next Monday 9th May 2022-Chalrse mentioned that even if i send the proof of payment to him, i will not get the car as my payment will only reflect on their system on the next Monday ), why was my payment not checked on the system if it does reflect or not????? eventually He gave me the car keys without providing the proof of payment, how did he got assurance that I made payment? was it necessary that he asked me to provide a proof of payment and insisted that i needed to provide the POP, otherwise he cant help me.