Makro voucher code constantly says already used, no matter how many new codes are given by Discovery.

Do not waste your time using Discovery miles. The system is not functional.

I used my Discovery points LAST year to redeem a R250 Makro voucher. I received 4 new vouchers but every time I use the new code at Makro it says it has already been redeemed.

This is the 4th time now they given me a new voucher and when I go to use it, it says already redeemed.