If you notice that your recipient details are incorrect after your transfer is already in progress, please contact our support team. We can edit them for you at any point before your money has been paid out.
If your transfer has already been paid out to incorrect recipient details, it will most likely return to our account. We can then correct the details for you and pay your money out again.
You may also cancel your transfer at any point before it's been paid out to your recipient. This can be done from the "My Payments" list on your TransferWise profile.