Bad service

I purchased a car from the Jhb South branch on 8 April. Paid cash and was then told after payment that my proof of address was not acceptable even though I told the agent I would bring a copy of my insurance policy as proof before I even went through to them. Admin personnel so incredibly rude and I had to ask my husband to go home and send me a utility bill and copy of his ID. Payment literally took 5 minutes minutes and I spent 3 hours there. To date I still have not received the vehicle's registration papers despite multiple follow ups and promises from them that they will get back to me. Worst service ever. Quick to take your money but then they don't give a ****. Clearly repeat business and good word of mouth is not important to them