************* Servicing of my car

I took my car to Kia the Glen, gave very some invoices worth about R1400 to replace some none service related parts. Took the invoice to the dealer I bought the car from and they advised that they will pay for those things as I only had a month driving that car. This time it went to Kia edenvale to get those parts replaced, Kia edenvale advised that there are some other stuff that required replacement and of which the Glen confirmed as replaced. All went well after that till I took my car for service again at Kia gold reef where they told me that the same things that the Glen and edenvale said they replaced. This to me seems that it's a money making skeem. How can a set of wiper blades be changed each month? Some lights of a car be changed each month? I am very well aware that I will lose this case before it begins because these guys know how to play this game very well. They make sure that the paper work is clean so that it looks good on paper when (according to my suspicion) they are not changing what they are supposed to be changing or even installing old parts in my car so they can do their private jobs with parts that were supposed to have been fitted in my car. I am very concerned, now I do not trust any of this dealers. They make it seem useless to have a service plan. This guys are not monitored