To verify they received it, signed for it, and to, essentially, guarantee that it would also be logged into my account. Emails are supported in court, but a ce

To verify they received it, signed for it, and to, essentially, guarantee that it would also be logged into my account. Emails are supported in court, but a certified letter or courier service has, essentially, zero grounds for evidentiary hearing challenges. The purpose was to layout an explicit log of prior communications and the terms of any/all communications moving forward (only physical mail), actions they needed to take if they wanted the account to remain active, and a time frame under which they needed to take those actions. Franky, just bog-standard financial dispute stuff.