Capitec cash send service

I sent myself a cash sent using the app on the 26th of June and when I tried to withdraw the money it said voucher can't be redeemed and when I tried again the following day which was on the 27th of June at my nearest Shoprite I still couldn't redeem the voucher. I went and enquired about the money and was given a ref no: ***2 but still haven't received my money. I want my money please resolve this matter!!!