Fee charged *******ly without my consent

On the 26th of January my monthly amount was taken and then returned on the same day. On the same day they took R115 from my account as a unpaid fee. No one bothered to call me to find out why the amount came back into my account. No one got my consent to take he R115 from my account.<br> They never take the monthly fee off on the same day of each month, how is one to know when the amount is due. Month was in my account on the 26th, so their excuse of insufficient funds in bull. I am so ****ed of with this. I am considering laying charged of theft and cancelling my account with them