Ok ... your family member may have made a big error ... you had to MAIL in the signed paper copy of the 2019 return as it could not be efiled. So did you ink sign and mail in the 2019 return ???? Or did this helpful family member combine the 2019 info with the 2020 info and efile one return using the current 2020 program ?
The second stimulus payment required you to file a 2019 return timely. Now that missing money goes on the 2020 return line 30 of the form 1040 ... look for it there.
And the third stimulus will be released when the IRS processes the 2020 return and there is no way to speed this process up.
Now to the new CTC advance payment ... when the 2020 return is eventually processed the advance payments will start automatically although you may miss the first couple of months advance you will get them on the 2021 return instead.
