The instructions have the wrong URL.I wondered if this step 1 was a mistake. I already had a myforest login too from a couple of years ago and it is not clear if I need to create a brand new account on myforest.nottinghamforest.co.uk. Or the instructions have the wrong url.
You need to go to the main Forest website - www.nottinghamforest.co.uk - and log in there. Don’t use the „myforest“ URL, that’s the old one.
Another fuckup that should have been caught in testing - had they actually done any testing, which clearly they have not.