Abnormal procedures followed by McCarthy N1 City

I am sooo disappointed with the experience I received from McCarthy N1 City. Firstly my first issue was when the finance documents came back with a different amount to the offer to purchase that I had signed. When I enquired on this, the salesman told me that they were doing an emergency delivery for my car- therefore they had to charge me an additional R4 000. This was a surprise for me as this was already agreed upon and the bank loan documents should not have a different amount to what I agreed on. Secondly, when the business manager of the dealer (Jacques) sent me the pre-approval, the term on the email was 60 months. When he sent me the loan documents, they stated that it was for 72 months. When I enquired on this, he gave me an explanation which I still do not understand till today. Because I was desperate for the car I signed the documents with the intention to change this to a different bank in a month or two. Thirdly, when I went to collect the car from McCarthy Woodmead, the car had an additional 1 500 kilometers on it. When I enquired on this, I was told that because it was an emergency delivery they had to drive the car. This was a frustrated process for me because no one told me that they would be driving the car. Had I known this, then I would have flown to Cape Town and driven the car to the Eastern Cape myself. The last straw was when I went to collect the car and the petrol was on an empty tank. Literally on an empty tank. Now all of these things are a big issue for me as they can't be standard normal procedure of how things are done. I have tried to inquire from the dealer and am still waiting for their response on this matter.