overcharged me even when I wanted to cancel my order

Beware of this company! I made a deal with them before I wanted to open my own business and I purchased a database of small area from them. Before I wanted to try trial version, they send it to me but charged me as a full version. I didn't like how they work and decided to cancel my order but they never refunded me money. This company is dishonest, beware and better avoid any business with them!