TransferWise is a service that allows you to convert money much cheaper than PayPal or credit cards.
Agents love TransferWise! Most of them offer the official TransferWise payment gate as a payment option.
Signing up and opening an account is free, they still make their money through conversion fees, only that they are much lower and more transparent.
Not long ago, TransferWise changed their name to Wise, but everyone seems to still call them TransferWise.