Last tax preparer amended 2020 business return, K1, and 1040 when ERC claim was filled.

ERC payment is in limbo, not received not yet turned down.

IRS is expectedly demanding payment on 1040x. Taxpayer is expectedly saying hold up.

We called IRS practitioner hotline and agent that answered had no knowledge of ERC programwe were talking about, and didn't understand the problem.

Currently thinking amended the amendments and assume money will never come. Any ideas on what to do?