Dissatisfied Customer

We bought a 2nd hand car from BMW Kempton Park but once the sale is done they almost wipe their hands clean of you. We have an issue with a noise that the salesman confirmed but to date have heard nothing regarding it. Touchup paint was apparently organized by the salesman and to date we haven't received anything. The side mirrors don't fold and we were told we can take it in but no details or feedback has been given as to who we take it to.