I obviously haven't seen your actual letters, but millions of people that have worked for the gov't and had some sort of background check done, i.e. secret or top secret clearance, probably was impacted.

If you are current military, contact your CoC for more information.

Retired or ex-military contact the VA (I know they're not the best either).

If you're in the civilian gov't or have been, try and contact your organization for more information.