Hi John,
This document is usually provided with the order form as part of the sales contract during the sales process and is not part of the product documentation. The 'End User License Agreement' (EULA) also differs by region, but here is a list of EULA's:
https://www.pitneybowes.com/us/license-terms-of-use.html
From the list in the link above, I think the 'Software and Data End User License Agreement' doc may be your best bet.
If there is anything which you are unsure of in regards to the EULA content, best bet would be to follow up with your account manager who could take a look at this locally for you in a legal sense.
Hope this helps. 🙂