when i try to buy vbucks it says "Payment refused by PayPal, please use a different funding source."

I just tried to buy 25$ worth of vbucks with paypal but it says “Payment refused by PayPal, please use a different funding source.”

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When I Try to purchase vbucks the game says :
1092: Payment has been refused for security reasons. Please contact customer support by visiting help.xsolla.com.
I just want to use PostePay, The EpicGames will fix it?

THANKS

When I Try to purchase vbucks the game says :
1092: Payment has been refused for security reasons. Please contact customer support by visiting help.xsolla.com.
I just want to use PostePay, The EpicGames will fix it?

THANKS