RCS merchant services bad service

I have purchased online on Debonairs app with Wi code on the 25th January 2025. The amount was deducted on my account but payment never reached Debonairs and purchase was unsuccessful. I contacted the store immediately and I was informed that there is no order on their side. I then contacted RCS and was told that they can see on system it shows error, I should call RCS Merchant services on Monday and request a reversal as the department had already closed at that time. After countless calls to RCS and being transferred to merchant services they haven't once answered, I sent emails RCS consultants escalated the matter and up until today, I haven't received feedback am I supposed to pay for a service / goods I did not receive? I have spent a lot of money on airtime to call continuously but to no avail! Please improve this!!