Hello @Roni Kandel
Welcome to the Docusign Community and thank you for posting your concerns!
Unfortunately, Docusign does not have a way to merge accounts or transfer envelopes from one account to another unless the account is under an Organization (this is a paid feature available for direct account) and the accounts are on the same site. I recommend the user downloads any needed documents and store them in their private device to later close their account.
Let us know if you need further assistance with this.
Best regards,
Nathaly | Docusign Community Moderator
"Select as Best" below if you find the answer a valid solution to your issue!