Unauthorized deductions

Always excellent service. Except R549.99 DD 25/5/2022 I have no clue what this is and I want it back in my account. I've previously queried lesser amount going off the same way, it definitely wasn't me who made that purchase. Please reverse it immediately Im in another country and can't get to a branch or call but this money needs to be reversed asap please. Here is my number +*** or email me