Voucher issues

My family bought me a voucher for my birthday last year (Feb 2019) at the Rynepark branch. I went to buy some things in Jun/Jul/Aug 2019 (not sure which month). The cashier rung everything up, but the value was less than the voucher value, so she explained that I would forfeit the balance. I decided not to proceed and took the voucher and left.

Last Friday (10 Jan 2020) I decided to go buy items before the voucher expires in February. I got items to the full value of the voucher, but at the till the system did not want to accept my voucher. The 'manager on duty', Nani was called and discovered that the voucher was already redeemed on the system.

The only explanation I have is that the cashier never 'reversed' the transaction last year, when I decided not to proceed with the purchase. I explained this to Nani, but he was not interested in helping me. I asked him to contact the store owner/manager, the IT department or headquarters to fix it on the system. All he kept on saying was: ".... you're welcome to lodge a complaint....". Well Nani, here we go.

I'm sure the system should be able to confirm my story in the sense that their accounts probably did not reconsile for that month.

As things stand now, I will never buy there again, nor will I recommend anyone else.