Unresolved refund

I bought a car in January 2022 and I was told by Arista that she will email me copies of the warranty I took out. I called multiple times with no luck of receiving the documents. She sent the documents eventually however she did not include the warranty documents. I requested that she must cancel the additional covers included and she has not responded to my request. She also charged me for delivery 2 times and the licence and registration fees charged is too much for the type of car I bought. I am very disappointed 😔 at the manner in which customer query’s are never resolved.