If you don't see a green badge with a caption "Verified" next to the Payment Agreement title, you have missing, mismatching or expired data somewhere in the Agrrement and money will not be sent. But you are not able to change the Agreement after CGT has already started transferring the monthly payments ( a few days before the 20th of the month) until it is finished.
During this time period you see a notification at the bottom of the page:
"We are currently processing payouts. Once done, you will be able to change your payout method for the next month.". This notification is "general", not specific to YOUR PAYMENT.