How long do i have to wait for refunds to be credited?

I received two refunds of $10 and $6 on my PayPal account, but the money is not present on Payoneer.
The payment was made using the card on the PayPal account. I contacted PayPal, they said the money have been refunded to the card.
I have wait for days, still nothing. Even Payoneer support don't seem to respond to my messages.