Hi to you both,
meantime - received an answer from ancestry support regarding the Registry Date question posed for this image. They confirmed your replies; viz:
While I do see a date of 23/6/13 in the section titled, "Date and Place of signing the agreement" this wouldn't be the Registry date.
The Registry date will typically be on either the top or the bottom of the record and should appear after where it says Received At, or something similar to that or it may be stamped somewhere on the page.
If you don't see something like that on the image you are keying, which I don't see that on this image, simply leave that information blank.