Kw clockwork is a total ****

Kw clockwork is a total ****. I am being sent an invoice that's over R6k to paint a rental apartment that I was initially told to just wipe off. The quote has the most expensive paint that was never there when I moved into the unit. The unit also had normal wear & tear when I moved out. Why in the hell do I have to pay R6. 7k for painting? This is the worst treatment I have ever received as a customer!