You may have spoken to an IRS employee who does not understand the "plus us" payments that have been going out to people whose AGI was recalculated when the tax laws changed and who are newly eligible for EIP payments. Sadly, even IRS employees are not always aware of the tax laws, especially the ones that just changed. With an AGI of under $150K you are eligible on a joint return for the 3rd stimulus---or perhaps a phased out amount depending on just what your new AGI is.
That "plus up" payment would not have been included with your unemployment "extra refund"--- the third stimulus payment is a separate payment. If somehow you do not get it then you might still be able to get it on your 2021 return if you are eligible then.
https://www.irs.gov/newsroom/irs-treasury-disburse-more-economic-impact-payments-under-the-american-...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
