UNKNOWN CHARGE

I just looked at my checking account on-line and noticed my account was billed $6.58 for I have no ideal, I don't accidently click on items that charge especially a pay day finance company. I didn't buy anything or subsrib to anything or click on any screen that has a potential charge or participation scam to get your free plasma screen. I'm no fool.and I did not request or ask or know what this charge is. I want it removed "NOW"! It's sad when a company you have no dealings with or know what there chargin g you can take money out of your account?? "SCARY AIN'T IT!!!