I used to be a very good customer of them, buying ...

I used to be a very good customer of them, buying almost on monthly basis. The day I came to buy a small earings, I received the worst treatment ever. Even been pushed by a sales guy so that another customer can sit. Even after complaining about it, I received no apology. I will definitely never come back.
I don't know how much this post will affect them, but I am that much angry that I needed to express my disappointment somewhere.