where is VW's old reliable customer service today?

My Tiguan went in for extended warranty check last Thursday, just out of 3 year warranty period, but within grace period; was told there was a problem with the turbo and a courtesy car would be sent on Friday if not sorted out; this did not happen, but promised that courtesy car would come on Monday whilst paper work being sorted; despite numerous calls from my side on Monday, car did not arrive; same again on Tuesday with different (spurious) reasons being provided and even after being told that car had been washed and was on its way .I had to make emergency arrangements as they were told I and wife needed to be in two different venues at 5 and 5:30 pm last nigh, but despite this and a belated promise that the car would definitely be with me by 7am today still has not come!!! This is beyond shocking service and not what I have valued over more than a decade supporting VW. I am so disillusioned with the passing the buck and blatant lies that I don't see how I can ever trust and do business with the company again. I am obviously telling my circle of friends about the deterioration in VW's integrity (apart from the emissions debacle). Deeply disappointed & concerned.