@Pherpich - some additional hints..... the IRS would have used the same bank account info for direct deposit as you used for your 2019 Tax return (unlikely they had your 2020 bank account info in March 2021, but it is possible based on when you filed your 2020 tax return).
Did you change banks during this time frame? if you changed banks, any chance you left the old bank account open?
if the IRS was unable to direct deposit the money, they were supposed to mail it via US mail.
