Lullalove UK review for Dcode ‑ Discount codes in Cart

This app used to work fine, but as some others reviews here say, one day it just stopped working. All our active and advertised discount codes suddenly started appearing as "invalid" in the cart, despite working in checkout. Obviously it affected our conversion on that day and we had loads of customers contacting us. The app support is non-existent. Same as below - we had NO REPLY IN DAYS! Deleting the app now and going with an alternative.