I have a card but have not activated it yet and I have deleted my Yolt account

Once you've requested a physical Yolt Card from the app, the order is immediately processed and we can't cancel it. If you have deleted your Yolt account from the app and have received your Yolt Card in the post later, not to worry, your card hasn't been activated yet as you can only do this from the Yolt app. Since your Yolt Card isn't active, it can't be used for any type of payments and can be destroyed and disposed of.