Beware Unscrupulous DSTV Service Provider

I would like to warn unsuspecting home owners of unscrupulous business practices by a company using the name "DSTV Company/Cape Accredited" on their Letterhead, claiming to be based in Pinelands (No address given?) I looked up Satellite service providers on the internet. I called this company (079 305 5690) and spoke to "Mark" and after enquiring about their call out rate, given as R350, I gave him my address. Within an hour a team of 3 in an unmarked car (Double Cab Navara) arrived. They climbed on the roof and said the Lnb had to be replaced. When that didn't work they said the DSTV Switch for my Explora had to be replaced. I unfortunately did not ask for a quote prior to the work being done as I had an idea of what the pricing of these components is. When the problem appeared to be resolved I was presented with an invoice for R4374.00! Immediate payment by EFT was demanded. (I have subsequently established a ligitimate service provider would have charged under R2000.00) I tried to phone the office landline number featured on their invoice but that is no longer valid. I spoke to a "Vincent" on a cell phone (078 786 4807) who was unyielding and became threatening when I said I wanted an Invoice and the claimed 3 year Guarantee emailed to me before I would make payment. The team refused to leave until the EFT was processed. After I had made the payment and they had left I discovered the Explora was not able to get all the channels I should be able to get. This was the problem in the first place! To their credit they returned promptly when I called Mark and set the decoder to receive all the channels it should receive. (I can't help wodering if that was not the problem in the first place?) The charges were loaded by nearly R1000.00 for Dish realignment (not done) and Sundries in addition to the Call Out fee! Components were charged at more than double their retail price! The expensive lesson I learnt is that you must get a quote before you allow any work to be done! I DO NOT recommend this company and if in response to your call to an internet listed service provider, an unmarked vehicle with men with elaborate hairstyles arrive at your home - beware!