Is that "regional" pricing assuming that you are remitting the VAT tax that your customer
thinks he is being charged? The rebill amount seems wrong or is quoted exclusive of foreign jurisdiction VAT tax ...
Pay site porn is subject to VAT taxes
https://www.taxamo.com/
Live performances where human action is necessary is exempt (by EU countries). Automated services, digital subscriptions, software, hosting ... etc. are taxable.
This is the only way this "regional" pricing makes any sense. CCBill has a European subsidiary company. This may be their way of keeping their nose's clean. That operation does not process for US merchants -- they process merchants in the VISA Europe territory. Or did until a few months ago ...