$21,367 Refund Frozen Since March 2024 - Mysterious "Amended Return" Shows on Transcript But Never Filed One

I filed my 2022 return last February and my transcript shows a processing date from April 08, 2024 but still no refund. My account transcript shows a negative balance of -$21,367.00 as of Nov. 04, 2024, but I haven't received anything! Looking at my transcript details: ACCOUNT BALANCE: -$21,367.00 ACCRUED INTEREST: 0.00 AS OF: Nov. 04, 2024 ACCRUED PENALTY: 0.00 AS OF: Nov. 04, 2024 ACCOUNT BALANCE PLUS ACCRUALS (this is not a payoff amount): -$21,367.00 My filing info shows: EXEMPTIONS: 01 FILING STATUS: Single ADJUSTED GROSS INCOME: $33,352.00 TAXABLE INCOME: $15,602.00 TAX PER RETURN: $11,297.00 SE TAXABLE INCOME TAXPAYER: $33,142.00 SE TAXABLE INCOME SPOUSE: 0.00 TOTAL SELF EMPLOYMENT TAX: $5,071.00 RETURN DUE DATE OR RETURN RECEIVED DATE (WHICHEVER IS LATER) Apr. 15, 2024 PROCESSING DATE Apr. 08, 2024 The transactions section shows: CODE 150 Tax return filed 20241205 04-08-2024 $11,297.00 70221-456-04985-4 CODE 810 Refund freeze 03-07-2024 $0.00 CODE 766 Credit to your account 04-15-2024 -$32,664.00 CODE 971 Amended tax return or claim 10-10-2024 $0.00 forwarded for processing CODE 977 Amended return filed 10-10-2024 $0.00 33277-690-08523-4 I called IRS multiple times and keep getting different answers. One agent told me there was a refund freeze (code 810) from March 7th, but couldn't explain why. Another mentioned something about my amended return (code 977) from October 10th, but I never filed an amendment! A third person just told me to keep waiting. I check Where's My Refund daily but it just shows "still processing" with no explanation. The credit to my account from April 15th shows -$32,664.00 but I haven't seen a penny of it. Anyone else dealing with this kind of situation or know what these codes actually mean? Is the freeze preventing my refund? Why would my transcript show an amended return when I didn't file one? I'm so confused and frustrated!