Unfortunately - that is a reality - the normal time for the IRS to review the claim for first time home buyer's credit is about four months.
In some situation it takes longer.
I think to sent two tax returns in the same envelope - that was a mistake - because the IRS most likely treated your tax return as a supplemental document for your finance's tax return - and not as a separate tax return.
There is a little you may do to speed up the process.
You may continue to call or you may visit your local IRS office (if that convenient for you) - no appointment needed. Let me know your state - and will find location.
Unless you get any information from the IRS or you would know the reason for delay - you may only wait. At least you know that your tax return was received and is in the process.
Sorry if you expected a different answer.
Let me know if you need any help.
Tax Preparer
Taxes, Immigration, Labor Relations
Please verify that you sent a copy of the HUD form from your settlement.
If you did not - you might add it to your amended tax return.
Lots of people reported that they are receiving the credit up to 5-6 months after sending amended tax return.
It seems as the IRS makes some actions to verify that all taxpayers are eligible for the credit. That understandable considering the amount of credit.
I wish you the best.