Ok. I registered (again) on the new website address. For my new password etc.
Filled in the details on the excel form following their examples. It doesn’t ask for a lot of things but imports perfectly.
When you then do a search to check it has submitted ok it shows the details you filled in on the excel sheet to import but there are other sections there too, all BLANK.
Such as date of issue, type of visa (!!) expire date of stay???
I switched between the UK and Thai App Store and could not find the app anymore (I was checking for an update)
Currently my App works but it will be a huge pain if I have to re-register half a dozen properties again, with documents and files to upload again when I have already done so!