Did they only send the original refund amount to date ? The missing first 2 stimulus payments of $1800 total should have been on the amended return line 15 and included in the refund on line 22. The IRS has been taking more than a year to process some of them so all you can do is check the IRS site from time to time. https://www.irs.gov/filing/wheres-my-amended-return
