Audi no parts no concern for customers

Audi SA needs to be held accountable for not holding parts in stock for well known and widespread defects on various models. My son's 2013 Audi A3 (with less than 100 000km on the clock) had the mechatronic unit in the gearbox fail. This is a common global failure and most probably a result of modern manufacturers engineering cars to a budget rather than for quality thanks to the beancounters at the helm. Despite it being a common global failure, Audi SA carries no stock of the part. When it failed we were told 10-14 working days to get the part as it would be flown in from Germany. It is now 15 working days and we are now told it will be another 10 working days. The car has been standing since 30 June and it has seriously compromised my son's ability to complete his internship as the dealer does not have a loan car, and in any case has a policy to only provide loan cars for vehicles still under warranty. To make matters worse my other son's Audi A3 had a water pump failure at 76 000km - another common Audi/VW problem for that model that is so common that repair agents buy all the water pump stocks they can get their hands on. Fortunately in this case the car did not go to an Audi dealer so an independent workshop found a replacement part quickly and made the repair. All in all very disappointing that Audi has forgone quality and customer service in this manner. After having 3 Audi's in the family I think it's probably the end of the brand for me.