Usability is shocking
Like most of Discovery’s interfaces (apart from their banking app), usability is shocking. You can do a lot with this app, but good luck finding your way around. As an example: it’s been years that I’ve been using it but I still am rarely able to claim rewards and use vouchers when I need them. It’s so deeply hidden within the interface that I have to figure it out from scratch each time. Mostly I just give up.