Nothing short of ***** and complete ****!!!

Nothing short of ***** and complete ****!!! I rented a vehicle from Tempest Cape Town Airport for 8 days in June. I am very particular when renting vehicles as I am aware of all the usual tricks like high excess, scratches on mags and chips in windows that mysteriously appear and then you are liable. I therefore take all precautions and insurance available however they have a new ****. I received my vehicle in a dirty condition and was told this is due to water restrictions in Cape Town and in my mind this is more than fair and accepted on this basis. When I returned a few weeks later I noticed a sizable debit from my card. 3 online queries - still had no feedback. I then called their support number and explained the situation. I was told told that this would be investigated and that a manager would give me a call and help with a refund and amount of R550 for a valet. I will be clear that I rented the vehicle for a long period of time which included snow, rain and wind so normal internal and external dirt would accumulate which would be covered in any rental agreement. Further to this I take my SUV for a weekly clean inside, outside, windows, mags and vacuum for R80? This amount of R550 is ******ion and I feel **********ly debited from my account as I was also at no stage sent and invoice. I have not been contacted by the manager and have also followed up but getting no assistance.