@jazzyk617 - okay, let's work through this as there is away out of this...
what is you AGI on Line 8b of your 2019 tax return. the fact that $27 was removed from the expected $2400 means your AGI was $150, 540 (which is why $27 was reduced) and the child was not reflected in the stimulus or your AGI was $160, 540 which is why $540 was reduced and the child was correctly on the return.
please post back and we can go from there.
