@suzygib
The mother does not have to refile. I didn't say she has to refile. In the case discussed above, the mother has not yet filed at all, because her e-file was rejected. When an e-filed tax return is rejected, that return has not been filed. So she still has to file for the first time, and she has to do it by mail. She doesn't have to change her tax return. She can file it as-is, claiming her daughter as a dependent. But she hasn't filed it yet.
Your situation is not quite the same. You have posted your own questions about the specifics of your situation, and you have received advice in response to your questions.
