Money market linkage

I went to checkers as I wanted to use my PayJustNow. Upon arriving there I asked for help to link my Xtra savings with money market account unfortunately I wasn’t helped. The next day I call the toll free number explained my situation. The guy who was helping me also wasn’t able to and he transferred my call to the money market department. Fortunately the lady picked up that the reason why I can’t link it’s because the system is showing my old number. I confirmed everything and was told my voucher is stuck on my old number. Was then advised to send and emaill explaining everything which I did. 2 days down the line my email wasn’t actioned bear in mind I need to buy my child stationery. I really need this to be sorted as I sent all the necessary things they asked for