KYP Form - and where to find

I have just received an email asking me to urgently complete a KYP form.  I thought I had completed every little thing on the site, every box ticked.

I was asked to click on the property ID in th email but there was none included.

How do I find this form please?

Sorry if this is under the wrong topic heading but as usual, none of the headings are relevant to what I want to ask.

Thanks