We get deliveries from Waitrose and Sainsburies, Wifey being 73 get's them a bit easier (slots I mean) but she still wakes up and places them in the night at about 1 or 2 o'clock in the a.m. you can order any old stuff usually over a certain price amount, then modify it later. Then she rolls them over so she is always about 3 weeks ahead.. But keep on watching as sometimes people cancel and slots suddenly become free.New mainboard for my fridge freezer in post, fitted and all working, now to wait until 2022 for a Tesco delivery. Somebody mentioned Iceland but the buggers don't deliver near me. Might have to actually go to a shop at this rate
Have no idea if this helps, but we suffered at the beginning and had to get dottir to do it for us
Wifey has just said Tesco are also sometimes available in the middle of the night, and she only has priority with Waitrose.
Hope this helps in some way.