Miladys are you *********** customers?

Very bad experience from Miladys Waterfall Mall. On 21 March 2020 I purchased 3 x jeans on promotion. If you bought 2 you received a discount of R 100. But also if you purchased for more that R 1000 you will get R 200 off. At the till the R 200 voucher did not want to scan off on my purchases and I was therefore handed the R 200 voucher that had to be used 21 or 22 March 2020. So I took a blouse and once again stood at the till only to be told that I now cannot use the voucher!????? Never though I would say this but Miladys are *********** customers!!!