This is a good lesson that for all accounts you should save the monthly statement as PDF, or scan the statement to PDF if you get a paper statement. Keep your own records for everything and have good backups. Most lenders will not keep those records forever for either practical (cost) reasons or because it's a liability, likely both. They will keep your records for somewhere between a convenient and legally required amount of time and no longer.
As for loan forgiveness? I suppose there's two ways to look at it. It's either money the government steals at gunpoint to give you because you won't do your own dirty work or it's a refund of part of the money they have stolen from you. Which way depends on how much they have stolen in taxes from you vs the "forgiven" amount.