This doesn't quite cover what you're looking for but I think a previous survey led with a question that mentioned uploading ID - https://yougov.co.uk/topics/society/survey-results/daily/202....

I can't find the survey it's entirety, but I think the above question was followed by (this is based on the number at the end of the URL, which I'm guessing is quesiton order) - https://yougov.co.uk/topics/society/survey-results/daily/202...