Dollarama

Good evening,
I just visited this store as usual (6 pm) and I asked to a employee (who was filling shelves) about some product, unfortunately my pronunciation wasn't right and he laughed at me. I don't know why he treated me with that familiarity because he isn't my friend, he didn't even apologize .
I think he hasn't good modals and his service was rude, also his attitude doesn't represent the Canadian culture, country where people respect each others.
Please take action with respect to this issue.
Thanks in advance.