Stimulus entry increase refund

My wife and I received the first and second stimulus payments, $600 for each of us both times, the second on 1.1.2021.  After entering what we hope was correct information on the "Recovery Rebate Credit Worksheet" our refund increased by $1,200.  This does not seem right.  I would think it would be $0 but do not know how to correct it.  We checked Box 1=no, Box 2=yes, Line 5=@2400, Line 8=$1200, Line 13=no, Line 16 EIP1=$1200, and Line 19 EIP 2=$1200.  This gives me a $1,200 additional refund which does not seem possible or right.  I did do an 'update' of Fed and State forms and still the same.  We are both seniors but I am still working.  Please help since I would like to hope the bonus is real, but too good to be real!