Thank you! I plan to resend signed forms again as USPS tracking continues to be the same. I think the USPS agent's response was incorrect as my last year's tracking for the same shows as delivered.
Also, please confirm if the address you sent below is the same as Department of the Treasury Internal Revenue Service Center, Kansas City, MO 64999 for opening service ticket with USPS as USPS doesn't find the 64999 address to be valid for opening the ticket. Thanks again.
Internal Revenue Service
333 W. Pershing Road
Kansas City, MO 64108
