I've offered socially-distanced individual appointments. All records laid out for inspection, I'm in the room to answer questions and make a list of copies required, then everything stays where it is, untouched by me, for at least 72 hours. I offer e-mail rather than paper copies and most people seem to prefer this, so if they want something I have on the computer, they can have it same day, otherwise they have to wait three days until I can scan it.
The auditor should be made aware of the failure to post the notice on the website Helen, as this is an important part of the process.