Terrible Customer Service

I've been trying to sort out my account for almost 2 months without any success. My 1st query took place on 22 May via the Mr Price Whatsapp option.

Online vouchers that I bought in Oct/Nov 2022 for which receipts were received, vouchers received and used are only being charged to my account 4-6 months after. This is completely unacceptable. After this query my online profile was blocked and am I unable to make any online purchases. I tried to link my card to my profile, but no one is able to help me. The Customer Service is pathetic.

Apparently there is an amount outstanding on my account, but I will not pay this until my query has been resolved.

I've asked that communication be via e-mail and not phone as I can't spend hours on the phone during working hours.