You can get an NHS Covid pass letter as proof of vaccination status. The phone app thing only lasts a month, the letter has no expiry date.
It's free and can be found here:
https://www.nhs.uk/conditions/corona...19/covid-pass/
Use the link that says 'NHS Covid Pass letter'.
So you just keep a negative test (or get someone to do one for you, if you're actually positive) and you can use that whenever you want to get in anywhere? Pointless, as you say and more power to those who claim Plan B is another distraction for the shambles that is the cabinet.
The date on the app always says it’s going to expire, but when you get to the expiry date it just changes to some other random point in the future. No idea why.
It was the same with the ones you needed to go on holiday. All you had to do was show a pic of a negative result on the test cartridge alongside your passport. The company then sent a QR code which was scanned at the airports if they could be bothered. It was utterly pointless because anyone could take the test, but a few people have made a fortune from it.