Received way too much stimulus money

[1967Chats]

I am separated from my husband (separate households).  I have already filed for 2020, myself and one dependent.  Last year I filed with my husband plus two dependents.  I received a stimulus payment today for $2800 based on my 2020 return.  My husband received $5600 today based on 2019 taxes for us plus 2 dependents.  We were overpaid by $4200 based on our 2019 return.  How do we send the money back to the IRS?  We do not want to get audited or accused of fraud.  This is a mess.

[CatinaT1]

This link continues to be updated as information becomes available.  This information is provided by the IRS - Third Stimulus FAQ