1. if you recently had your tax return filed, this can be a “plus up payment” of the third stimulus.
2. if you filed your tax return before congress passed arpa which exludes 10,200 of unemployment, then this can be a refund of that.
Hurry! Call them immediately to let them catch their error! Or… invest it and if and when they ask for it back, just return the principle. If you feel guilty, make a donation to Verizon and AT&T, since they’re the recipients of free infrastructure cash.