I did inform them via email at the time but never got an answer. More of a warning to anyone applying for the voucher, they should assume it may not work so don't go in for something you'd get cheaper elsewhere.
I haven't tried using the voucher, might be worth messaging their CS on twitter or email?
Tried voucher in a few stores, not one of them had a till able to scan the QR code on the voucher. Time wasters!
It's true Coop, Costcutter and the other smaller retailers generally can't match the likes of Aldi and Lidl on price!
you'll need the voucher off to bring anything near normal pricing!