I don't know about the rest of you, but I have been extremely angry with Tesco because I've been unable to get my food delivered. I've been using Tesco home delivery for over ten years, but then suddenly I can't book a delivery slot any more. Thankfully, I am one of the lucky ones and managed to get a recurring one with Asda and although I prefer Tesco, Asda have been a lifesaver for me.
Anyway, it seems there are people taking them to task over this, so if you feel strongly enough and want to take action, take a look here:
https://www.disabilitynewsservice.com/
http://www.frylaw.co.uk/
I won't be taking any action thanks to Asda, but I'm sure a lot of you haven't been so lucky.