The lady there was wrong. I work for H&R Block, too, for over 10 years. If you marked that you were a dependent, you will NOT get a Stimulus check unless you amend your return. Here's the problem. There's no place on a 1040-X to officially change claimability. All you can do is to spell it out on Page 2, Part III, Explanation of Changes and hope they actually read that part and make the appropriate changes. Your refund will not change at all.
