If you live in the Netherlands or another country that allows to convert money to a Netherlandic bank, you can convert the amount in Euros to account # 1039 76000 (Paul Cooijmans, Lieshout, the Netherlands); mention the item you are paying for, for instance the name of the test or the title of the book. When from abroad you may need this:
IBAN: NL11 RABO 0103 9760 00
BIC: RABONL2U
If all else fails you may send the amount in bank notes by mail in Euro or U.S. Dollar equivalent. Make certain it can not be seen from the outside there is money in the envelope. Checks are not accepted, unless for amounts over € 100.