Sorry to hear your unfortunate situation with Payoneer.
I don't think UpWork can help restoring your Payoneer account.
Have you tried their Phone Support?
Here are the numbers I have just got from their phone support page, thought it might help.
@Basil S wrote:
Alas no Russian phones, thanks anyway
Get a little Skype credit and call them on Skype. There not being a Russian phone number is the least of your worries if your account with a large bunch of money is blocked.....
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