Hi Riya,
I checked your account and can see that the Payoneer account on your Upwork profile is under your name. If you have the transaction number, could you please share it with us so that we can look into it for you?
If you want to disassociate a Payoneer account from your Upwork account, please contact Payoneer Support. Once it has been disassociated, please contact the Customer Support team so that they can remove this payment method for you.
~ Avery