Can't open final document to review after signing

I filled out a form for the government which required a digital signature handled by AdobeSign. 

I filled out the form, signed, then entered my email information for adobesign to send me a confirmation of that signature.

The following email stated: You are done signing "name-of-form-here". The Agreement is fully executed. You can open the final document to review its activity history or download a copy for reference. 

The link supplied to "download a copy" and/or open the document links to a dead link. "null".

I've tried to open this link on several platforms with no success...

My biggest concern is, if the email confirms that the agreement is fully executed and the document has been signed, even though I cannot open the document...Can I rest assured that the originator received the document based on the "Fully Executed and Signed" statement?