The IRS sent me a check because I filed my estimated taxes on the wrong line. I can't figure out how to amend my return. I tried to do it on my turbotax but none of the update lines work for me. I have tried for over a month to get through to the IRS and cannot. The letter I received is CP24. I only have 10 days left to respond. I have not cashed the check because it is in error.
