After you file

I use the mobile app and there is no option to select or find the Recovery Rebate Credit on 2020 Form 1040 or 1040-SR. I received my first check, so when they asked me how much was my stimulus last year, I put down $1,200 which is what I received. The government site says it doesn't have enough information about me. I did close my bank account so I can imagine that being an issue. I just want to make sure I filled all of the correct procedures on the app to receive my other $600. Again, is there an option  for the Recovery Rebate Credit on 2020 Form 1040 or 1040-SR and where can I find it on the app. My taxes are basically ready to be sent except I can't find the rebate option. Thanks