Good Afternoon @Seller_W8zW4X13SQyoz,

There is a great Seller Central help page I am linking --> HERE <-- that gives you detailed steps on how to verify your deposit methods.

I specifically want to call out this note on the help page that can answer parts 2 and 3 of your question:

Note: Bank account verification may take from 48 to 72 hours to complete. We'll notify you via email when your bank account has been verified or to inform you of any additional steps that are required. If you choose to use a different bank account for verification, or if you add a new bank account for verification, you must assign the verified bank account to the Amazon.com store from the Assign Deposit Method or Replace Deposit Method pages.

Please let us know on this discussion if you require additional assistance or you can always contact Selling Partner Support with inquiries at anytime. Thank you for checking in with us on the Seller Forums and for choosing to sell on Amazon. Have a great rest of the week! ~ Cooper_Amazon