deco forever flooring - poor workmanship

I recently bought wooden floors from Décor forever, Deco park , north riding. these floors were installed on the 15th June 2018, the floors were installed by Prince, the workmanship was extremely poor, and glue and cracked tiles were left by him, when confronted, he blamed other workmen on site, despite the fact that he was the only one working in that area. his contact number is **********