got a $1200 IRS check and I have no clue what it is

I just got an IRS check for $1200.

Looks legit with Watermark. No other info or letter, just the check saying "TAX REFUND 30" and seems to be about my 2022 filling from last month. I did get the expected refund via direct deposit so I thought it was all allset.

I am pretty careful about lining my deductions and I don't have that many anymore. No dependant ,married filling Jointly.

Call IRS to check but they want me to wait a few weeks to ask for info because my filling is too new.

I am just baffled as to why I get this extra money. It is our name on the check, our address.

Anyone has any idea what 1200 could be matching too?