I have received sales calls every month for years from this company after replacing a windshield once. I have asked to be removed from the calling list multiple times, never happens. They call from different numbers so you can't block them. It is a lost cause.
Unfortunately due to the sales tactics, I will not use this company again. This is a shame since the work was done very well.
Googling this business illustrates what everyone already knows. This company does not respond to customer complains over being contacted aggressively and being asked to stop. Even the Better Business Bureau has given you an F rating. It is time to change the way you do business. You sell a quality service, your sales tactics are terrible.