In general, any coupons that you receive (whether by post or at checkout) can also be used digitally online and via the app as soon as they become valid. If you haven’t yet received your coupons by post, but they are already available online or on the app, they are valid and the digital coupons can be activated and redeemed the next time you shop. These redeemed coupons will then no longer be valid in paper form, even if you receive them at a later date.