Could Multiply please assist me instead of asking for my client number and then stopping communication.

I have been having an issue with cashbacks, specifically Dischem. I contacted Multiply at their call center and although very friendly insisted that I had received all my cashbacks. The problem is, for the whole month of June 2023 and November 2023, I received absolutely zero cashback although I did spend and swipe my card. November was Black Friday month and I definitely purchased. I have emailed numerous times with the customer service agent then asking for my client number to investigate and then that is usually the end of communication with them. How useless are they? I did receive help from an extremely helpful customer care agent, Divan Strydom, who also checked for me and told me that the back office informed him that I had received cashback only to find out that the back office was referring to my husband's profile and not mine. That is also strange as my husband does not have a Dischem/Multiply card to receive cashback. So what nonsense was being communicated? I am so tired of trying to deal with Multiply issues, it is just a headache in the end. Apart from all of this, I just want to mention that this customer service agent, Divan Strydom, was the first person since I joined in 2021 to actually get back to me and assist and apart from this issue, managed to resolve every other problem that I came across. A job very well done from him.