There are a couple of ways we capture guarantor details:
In the application flow - if the applicant is also a personal guarantor (director or >25% shareholder) we capture their approval and signature here.
In the signatory flow - if the applicant is not the personal guarantor or where the supplier requires 2x guarantors we email the guarantor and advise them they've been nominated. They approve or decline to guarantee in here.
As the guarantor flow is a digital flow, we don't provide paper copies. If you've got guarantee turned on in your profile rules, you can view what the end result looks like on your PDF document, which sits in your connections tab.