Very poor customer service at the Oakville location. We visited the Oakville store to purchase additional tiles for our backsplash. I had already returned to the store once to have 2 defective boxes/ cracked tiles replaced. The associate who served us was pleasant and helpful. However, Nicole (who I believe was the manager), without understanding the situation, very rudely and arrogantly told us “I cannot let you open any more boxes”.We were simply checking the boxes that we had purchased. We did not open any boxes that were not already openned by the associate or others. Are customers not supposed to check what they are buying???I didn’t want to have to go back once again with cracked tiles. Very poor customer service!!!