Deal from hell cmh nissan, I'll never go back again!

Bought my bmw at cmh nissan Sandton from tomelo as our sales agent in October 2022, first off the back showing me the car and actually selling me the car was most definitely a good, since then all went down. The after sales is horrible as well as the customer service. I have asked numerous time were is my spare key and service book but I they just keep saying they will ask tomelo and get back to us that never happens. Sill I have no spare key and service book for a car that is costing me almost 200 k. I had the car about a month and had to send the car back because my breaks was done even tho they said my car was inspected and everything is fine when I bought the car, so they ordered the parts cost me a few days then they called and said the got the wrong breaks so they have to order another set so about a week and a half I went without a car, after that the 3rd month that I had the car then I had to replace the battery that cost me another 4k. Now in June I sent my car in due to a fact that my car is having an excessively rough start and the car is pulling to the left. So they they charged me another 3,5k to replace the tyrod at the wheel.. so when I went to go pick my car up I asked about the rough idle they technician said to me its normal for a bmw to have a rough idle, but once again I've said to him it is excessive ( not normal) and that it is the timing chain. The not so clever technician agreed then after, the customer told him what the problem is with the car said we need to order a timing chain kit, I'll have to wait again, I do not have time to waist as I struggle to get off work and is costly as I'm traveling everytime from Benoni. The lady at the help desk amisha at that time very rudely said you bought a motor plan with the car and warranty take it to bmw itself. I asked again for my service book and my spare key from her she said she will email the boss and add tomelo in and Cc me into the email because I want my book and key, it a about a month now still no contact from them what so ever. I'll never buy from cmh again! You guys was amazing until the car was sold, and the car you sold me was full of defects.