@bjust9 - there is something going on with the child.... before calling the IRS, please look at the tax return. On the line where you child is listed, look WAY OVER to the right and there two small checkboxes. The one stating "child tax credit" should be checked. if it is NOT checked, THAT is the problem. (but hard to beleive TT gave you the $2900 but the box wasn't checked).
