Check the IRS website for status of the stimulus payment and update your bank information if necessary.
https://www.irs.gov/coronavirus/economic-impact-payments
AGI is line 7 on your 2018 return and line 8B on your 2019 return. Refund is line 21a of the 2019 tax return. and line 20a for 2018
if they have not completed your 2019 tax processing, input the 2018 numbers