@Tesco@ColinHassard1 what a nightmare! just to let you know that I managed to cancel my order on the app. It seems to allow that step and received email confirmation too. Thought might be useful to know.
@shoe_gal@loopylouiw@Tesco good tip! I've just done the same and ordered with Asda since they had slots for tomorrow! I cancelled my Tesco order via the app.