Quartz stone

Don't recommend this company...I have bought Calcutta quartz from this company.. they referred a fitter from thier company . After 10 months there is a crack in my quartz and it looks like bad workmanship or factory fault..I have been texting the sales man everyday and all he says is I wil send an accessor to come take a look.. it's not happening..my husband goes in personally to see the sales man..he says don't worry will send the accessor..I take this complain to instagram on thier advert..the sales man calls me and says please take that comment down his going to assit me...he disappeared. The problem is I had just moved into the property and there was alot of companies working on the property..so when thier guy came to fit the quartz into my kitchen and finished his work. We had completely forgot to ask for the invoice and the lifetime warranty.. but irrelevant it was his duty to give it to us..I own a company and customer comes first.. every complain is treated with priority. Our salary is from a customer...this company don't realize this..yet they advertise so big . Very disappointed customer.