У немцев с этого сайта я тоже брал боны до 50 евро по ПП, но вот именно французы пишут
Orders under €50 cannot be accepted.
Shipping fees are from the French Post office + 0.26 % of the order amount for insurance fees.
Except for bookstore orders, orders over €450 are shipped freight free. For detailed shipping information, click on terms of sale.
We accept credit card until 300 €.
We do not accept Paypal.
Please don't pay before you receive the pro-forma invoice.