Plymouth Direct NO PERMISSION FOR CC NEEDED Internet

I went to the beactivebrace website to inquire about how much 2 braces would cost in September.  They require you to put in all of your personal info including credit card info before giving you a total.  After seeing the ridiculous amount for shipping, I backed out, but they took my order any way.  I never received a receipt stating this had been submitted. 

Today, they have withdrawn unauthorized funds from my account @ $71.78.  This is so unethical.  I will call my bank and have this removed, but it is just the nerve of these people.  I have checked prices by putting in cc info on other sites before and never had this problem before.  Do they not realize that this type practice could put some people's back account into overdraft and wreak all kind of havoc in someone's life.  No, they don't care.