I have a betfair account for a few year, however, as some policy modified recently, I cannot deposit to betfair. It is being too difficult to deposit money to Betfair now in some banned counties,
So any buddy have any idea of deposit money from some banned countries? Please sharing.

If you getting hard to deposit your money, how much more when it comes to withdrawal.
Most commonly gambling site prohibit their users to use VPN, if you are changing IP address it will I guess put in risk your account. If this VPN will work smoothly for you, then, you can use it. But if not, I suggest finding other bookies than there is a possibility that you will have trouble in the future, withdrawing fund will maybe.
Just check the TOS too for more information and guidance.