fastloan4me unauthorized debit from my bank account, $30.00  Internet

I was debited $30.00 dollars for nothing, I have never signed or gotten anything from this cursed company, I called the number someone gave on a blog, 775-577-4822, turned out this number belongs to another company that has nothing to do, the person on the phone told me that this company has been reported to the authorities since they get calls daily from angry victims. I want to know how to stop this madness, I do not want to have to close my account since I have direct deposit and many other services tied to this account.