Arcoroc Granity Old Fashioned Glasses Tempered 200ml Set of 6

I accidentally bought real glass when I meant to buy polycarbonate. I emailed day of delivery and then 2 more times since to ask if I can send them back and exchange for polycarbonate glasses Guess what? I’ve not heard from you! Can I return them? Can I exchange them? What is the correct procedure? Please feel free to call me. I find this the quickest method of communication or if u r not allowed to talk to your customers. Please email me . Thanks. Jacquie