Unauthorized deduction

This is the 4th time this month that an unauthorized deduction is going off on my credit card and once again the contact centre agents are useless and unhelpful. About R350 was deducted from my account again without any explanation in the banking app or on my statements. It's ridiculous that I have to check my bank statements everyday, I am supposed to trust that my bank will handle transactions in my account correctly and honestly but I am constantly finding mistakes and then have to contact them to correct it. It's also ssad that NONE of the call centre agents know what they are doing and I always have to submit a complaint on hellopeter to get proper assistance.