TILE AFRICA SERVICE NEEDS PANELBEATING

I purchased Slate tiles 2 weeks ago. Most of the first batch of tiles was brown. There was a few black slate. Which I wanted to exchange for the brown color. The ops manager and assistant manager refused. I even asked if I could rather buy additional tiles but get the more brown ones. I was told that I cannot choose. They will give me what they have in the open crate. I could see the brown ones that I preferred however I was not able to select. I had to take what the the packs gave me. Not sure if its just the Lenasia Branch rule or a Tile Africa rule. I am very brand loyal. I dont see my self entering TILE AFRICA again and the sad thing is I was with my maintenance guy at the store and the security guard told my maintenance guy in the African language that was spoken that they will make sure that I don't change the tiles to what I preferred.