please reverse my money i want to use it

on the 02/03 July 2020 i send myself send cash using Capitec Bank app i didn't receive the money I was told that they are experiencing a technical problem but when I check the money is no longer in my account even those I didn't manage to get it because I receive an error message written on my atm bank receipt "voucher can not be redeemed, I lodge a complain below are ref numbers Ref ***1 ***