To change the Payoneer payment method in your Upwork account, the old Payoneer account will need to be disassociated by our Customer Support team before the new one can be added. Click here to make that request.
Once the old Payoneer account has been disassociated from your Upwork account and removed, the support agent will notify you that the new Payoneer account can be added as payment method in the Accounts menu > Settings > Get Paid. For instructions on adding a Payoneer account, click here.
If your old Payoneer account still appears when you try to add a new payment method, this means that the old Payoneer account was not disassociated from Upwork. Please update the related support ticket for further assistance.