Paint tin popped opened and spilled in car. I was in the car park. I went back in store and supervisor advised company policy is that once you walk through exit door it’s not there responsibility. I should have throughly checked that lid doesn’t open while in store. “The lids are closed by manufacture”. So there can be no default with lid. He didn’t even want to look at the car or the tin. As advised, make your anything you buy from b&q is checked while in store as it it’s not shut properly it’s not there problem. Originally another staff member did see the spillage, but the supervisor wasn’t interested. Poor service considering how much paint I buy from them. Also I did put a comment online about the particular issue, no response so far.