Beware of faulty installation

Like Anne Nesbit,I too prepaid $1100 for a countertop and installation.like her, they installed it improperly on the miter-it didn't fit .I called Tammy who came and took pictures and said they would look after it.Then she sent the installers who said it was water damage and blamed it on me.She referred me to her manager,Jason O'Hearn who said I was "trying to shake him down for more money and he would give me $50 from his back pocket".In short , he was not about to do anything to correct the problem and was condescending and rude.Clearly he needs to step up and admit his installers are not professionals and take responsibility for their errors.I feel lucky that they didn't flood my kitchen like they did with Anne Nesbitt.