Absa rewards voucher not working... Again

This is not the first time the voucher does not work. Last week Friday, I got my reward voucher. To my dismay it didn’t work when entering the Nandos code online. This is truly horrible service. Can Absa get it right. What a waste of time logging a Hellopeter to get Absa’s attention. I don’t know how many times I have wasted my time with the same issue.