Wafaa Henin in Port Coquitlam

During the past 2 months I spent more than $2,500 on paint and paint supplies in the Port Coquitlam Home Depot location. Last week I asked for a paint sample cost $3 and when I went home I found the color different than what I have asked for. I went back to the customer service the following week and Tanis at Customer Service talked to me in a very rude way and told me "we cannot refund your $3 because we cannot confirm whether your story is true"!!! I wonder what kind of customer service is this!!! You think I would waste my time asking for $3 refund if it is my mistake!!