Need Help Decoding My IRS Transcript - $8,521 Refund Pending After Amended Return with 570/571/290 Codes

Can someone look at my transcript and let me know if things look normal? I've been checking WMR daily but getting nowhere. Starting to worry something's wrong with my return but I can't make sense of all these codes and dates. Here's my account transcript: ANY MINUS SIGN SHOWN BELOW SIGNIFIES A CREDIT AMOUNT ACCOUNT BALANCE: -9,521.00 ACCRUED INTEREST: 0.00 AS OF: Dec. 10, 2024 ACCRUED PENALTY: 0.00 AS OF: Dec. 10, 2024 ACCOUNT BALANCE PLUS ACCRUALS (this is not a payoff amount): -9,521.00 INFORMATION FROM THE RETURN OR AS ADJUSTED EXEMPTIONS: 03 FILING STATUS: Head of Household ADJUSTED GROSS INCOME: 17,270.00 TAXABLE INCOME: 0.00 TAX PER RETURN: 0.00 SE TAXABLE INCOME TAXPAYER: 0.00 SE TAXABLE INCOME SPOUSE: 0.00 TOTAL SELF EMPLOYMENT TAX: 0.00 RETURN DUE DATE OR RETURN RECEIVED DATE (WHICHEVER IS LATER) Apr. 15, 2024 PROCESSING DATE Apr. 02, 2024 TRANSACTIONS CODE EXPLANATION OF TRANSACTION CYCLE DATE AMOUNT 150 Tax return filed 20241105 04-02-2024 $0.00 76211-419-38537-4 766 Credit to your account 04-16-2024 -$3,051.00 768 Earned income credit 04-16-2024 -$7,570.00 570 Additional account action pending 04-02-2024 $0.00 971 Amended tax return or claim 10-01-2024 $0.00 forwarded for processing 977 Amended return filed 10-01-2024 $0.00 43277-676-02854-4 571 Resolved additional account action 10-29-2024 $0.00 290 Additional tax assessed 20244705 12-10-2024 $0.00 33254-725-05573-4 I'm especially confused about these codes 570, 971, 977, 571, and 290. What do they mean? I filed my original return in April, then did amend in September (that's the 977 code I think), but I'm not sure what's happening now. Does the 571 code mean my amended return was processed? And what's with the 290 code from December 10? The account balance shows -$9,521.00 which seems like a refund, but I haven't received anything. My original refund should have been around $10,621.00 ($3,051 credit + $7,570 EIC). Is the IRS holding my refund? Does the "additional account action pending" mean there's a problem?