@Cpreston77 -
my only suggestion at this point is
1) wait and see if the rest of the money appears
2) call the IRS in a few months when they have the call centers operating again and inquire.
3) fill out a 2020 tax return next year so that you get the $1500. It would be free to file
I am assuming all three children are US Citizens (or resident aliens) and all three have social security numbers - those are requirements to obtain the stimulus.
