Yes, it is mandatory, otherwise, Twito will not be able to automatically verify that you have posted the promotional tweet.
Yes, the tweet will be placed on your profile permanently as your PRO account is permanent. You cannot delete the tweet, and if you do, we will ban your account.
Do not delete the tweet and contact our support team at email@example.com to resolve the issue.
Yes, Twito is currently a free service, but we reserve the right to monetize it in the future.