Unauthorized debit

<p>Hi. I would like to report a case of ***** as there was an unauthorized debit on my account. I went into the branch to reverse this debit and I should receive my money soon, however I have noticed that when I googled this company, I found that they have been doing this to to many other clients from other banking institutions as well. It seems that this has been going on for years. Please advise on the steps to follow in order to report this "ghost" company and how can these unauthorized debits be avoided in future?</p>