Uncooperative staff.

No invoice mailed as requested and when I went to collect it from Randburg Glass, after paying cash and receiving no receipt from Randburg Glass. I was asked if I think I'm dealing with the village idiot by Bjorn. Was then told to get the owner to mail me the invoice. TO CROWN IT ALL THE GLASS FITTED FELL OUT 2 DAYS AFTER INSTALLATION. That after we were told not to open the window for 24 hours. This now being denied.