After you upload your passport photo the OCR will read the data and fill in the zones. It's your job to triple check, edit if necessary and make sure everything is correct before submission. Mistakes in biodata are an immediate cancelled application.
Use the visa exempt stamp for as long as you can till/if passport control confronts you. You are genuinely regularly holidaying here and shouldn't raise any red flags. I think it's easy enough to explain your regular presence in the country.
You get 2 emails, the first one comes almost immediately and acknowledges that the report is filed, and the second can take a few hours or days and states whether it's approved or rejected.