Accidental Stimulus Deposit?

     I realize this may be a stupid question, but I haven't seen any other questions of the sort. I am a minor and I filed my tax return. All of my sisters got only like 23, or 33 dollars back on their tax returns, but I received 500 something. Because I am claimed as dependent, I DON'T get to collect a stimulus check, that should instead be a check of $500 to my mother. But my mother didn't receive 500 for me, even though I filed as dependent on my tax return, and she claimed me. So the theory is, did I get my mother's stimulus check on accident on my tax return? Is that even possible?