PornBox.com

Both are advertised as having piss drinking scenes,
with prominent screen capture photos showing such
scenes,but neither video has any such scenes?

Clearly those scenes were edited out. But why?
seems weird - You should remove the photos and the
reference to piss drinking in the video descriptions.

Also, just checked: the trailers show piss drinking
that is absent from the videos too.

Also both are repeated and described slightly
differently, assumedly as some kind of trap to get
people to pay twice. That happens a lot on
LegalPorno - I only mention it because it happened
on these as well.

Note that GIO852 and GIO854 are identified as "Censored"
versions of GIO851 and GIO853, but are no longer
available. Is it possible that the process of removing
GIO852 and GIO854 accidentally removed the
uncensored versions?

You probably downloaded the no piss version. When you buy the piss version you get the dry version too.

as utopiaa says, look in your pornbox, you should find two scenes with the same designation, one is the dry and one is the wet version.