I would give it no star if I could. Whoever hire those two mainlanders need to teach them english and how to calculate properly not rounding up tax and everything. They didn't even understand us after we pointed out that $2.99 plus tax isn't $3.50 and they can't just round everything up. It's not a chinese market for god's sake.
Apparently the total came to $12 according to them. Which in truth(they handed us a calculator and we actually rounded 2.99 to 3) the total only came to $11.25. I know its few cents different but I didn't really care about that. But the fact that they figured we wouldnt know anyways so they cheated. Then they acted like they were doing us a favor by saying its okay it's okay few cents. Well you know what, if it is in your country then get the hell back there.
Please make sure your employees understand the fact that it's not okay to do so. We tried to explain but they didn't look like they get it. They seem as if it's normal and they did nothing wrong. I wonder how many customers had been cheated on already.