I left a coin that I was going to purchase at the front desk while I continued shopping. When I checked out, I was charged a higher price that what was on the price tag. I told the lady checking me out, that she had charged me the wrong price and she informed me that she was sure the booth owner had mismarked the item so she raised the price. She rang it up without any explanation to me until I questioned the higher price that I was being charged.This is totally unprofessional and unethical in business. They have lost a loyal customer who had shopped there for years.