This is a known issue which will be fixed later today. Please try again tomorrow.

Still don't know why stimulus submission was rejected and no instructions as how to fix. No address listed to mail printed return as instructed. What am I to do???

It was an issue with the TurboTax program. Try using it again today or tomorrow.

and how does one go about resubmitting it???

These links may help explain and guide you through the process.

https://turbotax.intuit.com/stimulus-check/ link to stimulus registration (SR).  It is very important that you uses this link that says register now if you don't need to file taxes this year.  Otherwise, you will not be able to E-file a zero return. It also has the calculator.

The IRS says it is working on developing a web-based system for people to give the government their direct-deposit information. Keep checking www.irs.gov/coronavirus for more details on this.

Edited  04/07/2020

The IRS says it is working on developing a web-based system for people to give the government their direct-deposit information. Keep checking www.irs.gov/coronavirus for more details on this.