I think they got the email address I provided on the gov.uk website, and linked that with the email used as a customer on the supermarket website previously. I'll find the messages we got for you.
Iceland-
Dear (name),
The Government has provided us with the data of the people who have self-declared, or that the Government has identified, as potentially vulnerable during the Covid-19 pandemic. We’ve used this data and have identified your account from our records. We therefore wanted to reach out to you to let you know that we’re here for you and would like to help.
We are releasing thousands of online slots on Thursday 9th April for delivery Saturday 11th April to Monday 13th April and would like to give you priority access.
To gain priority access please click the link below on Thursday 9th April between 10am and 11am.
Please note that you will not be able to gain priority access at any other time or directly through our website. Online delivery slots are only able to be booked by you via our website. Unfortunately, we cannot book a slot for you if you contact us or our stores directly.
Asda-
Email:
(address given)
You've been issued with a Priority Pass
Hi
We recently got in touch to let you know Asda is here to help you stay safe at home.
Great news! - Your priority pass is now ready to use.
Get started
Choose a slot
Please visit our website to place an order and not our app. You can Sign in and choose from available timeslots that work best for you.
You’ll get first priority to book slots as they become available.
Make it a recurring slot
Be sure to make your slot a regular recurring slot for peace of mind so we can deliver to you every week.
You’ll see the "Make this a recurring slot" option after choose your delivery time.
Confirm your order
Make sure you confirm your order by midnight 2 full days before the slot is due. You’ll be able to amend your order until 10pm the night before it arrives.
Help us ensure your order arrives on time by only amending your order once and only if urgent.
Stay safe. We are here to help.
Regards,
ASDA Online Groceries Team