Printing Host defective product (labels ), ignores repeated attempts to contact. no reprint, no refund, no answers Mississauga, Ontario

printing Host ran some 2-sided labels that proved to be defective. the product was also delivered 3 weeks late. they were supposed to be laminated and for use outdoors as alarm company labels to be put on windows, as was specified in my order to them. they discolor and turn yellowish green after 2 to 3 weeks of outdoor exposure. when i contacted the main staffperson Naveen, he assured me that they would look into this and get back to me immediately. i have been emailing and calling for over 4 months without the courtesy of  reply, and without any attempt to rectify this situation. i of course had to pay with a credit card in advance and they are not refunding me. they do not reply to my attempts to contact them. they are a poor excuse for a printing company, they produce off-shore, they are unprofessional, unreliable and should not be used by anyone.