You've to accept the invitation first to get into App Store Connect through email, check your inbox.

This is happening a lot these days. Apple is taking longer than usual to approve Developer accounts, even when everything is submitted correctly. I recommend sending a short follow-up email to (itunesconnect @ apple.com) with your Apple ID and mention that your enrolment has been pending for over a week. There’s usually no missing step—Apple is just doing extra verification.

There is 0.009% chance to get back your developer account , and about your payment it will be processed within 5-6 months , so Don't remove any your business details from your account till you receive that payments.

Ready for Distribution Status means that your app is already released/live on app store. You can confirm it by searching your store name on app store.