Deductions & credits

So you got the 2,800 for the both of you?   Then you answered a question wrong and tried to get it again on line 30.   Line 30 is only if you didn't get the full amount or qualify for more like if you had a new baby.

 

Sorry there is nothing to fix.  The IRS took it off your return because they already sent you the $2,800.  If you try to fix it to say you did get the 2,800 your refund would then be 2800 less.