BE CAREFUL!!! I wish there was a O star Option. I ...

BE CAREFUL!!! I wish there was a O star Option. I received a call the next day I got my DOT number, they are very sleek and misleads you to think they are part of the DOT. I paid $260.00 thinking it was a requirement of the DOT. I found out they were a private company. I called them immediately to cancel and get me reimbursed but they give you no answer. I have sent several emails to them and nothing. DON'T LOOSE YOUR MONEY! THEY ARE SCAMMERS!!!!!!