Disappointed loyal customer

I am so disappointed with miway, having been their client since 2011. I have claimed for windscreen replacement on the 18th of December, which the service provider appointed was auto boys. It was confirmed to be installed on the 27th of December, however, they ordered the wrong glass. Subsequent to that we complained to my way, then another service provider was appointed, which was glassfit, alberton. I called glassfit on Saturday, to be told i can bring the car on Tuesday for fitting but when i got there on Tuesday, they said they don't have that order. We further complained to miway, which PG glass alberton was appointed. I received their call saying the glass will be fitted on the 9th January. But on the 9th i received a call saying, the glass is not be available, claiming they are out of stock. Really how can they have given me that date, if they knew they are out of stock. I further called miway to complain. I spoke to nhlanhla from the claims department, which he said they will try to source another service provider, but even today haven't received any feedback or an update. What makes me so angry is that today the 10th, i called them to find out what is going on, while on the line with them, i run out of airtime. I thought they will call me back but No, i really feel they don't care about their customers....