Your donation is very welcome


Essential insights are shared on this website for free. A voluntary contribution would be appreciated very much. In that case, send your voluntary donation to International Bank Account Number (IBAN) NL94 RABO 0156 1557 53 in the name of J.H. Oldenkamp (Business Identifier Code (BIC) = RABONL2U; this is also known as the Society for Worldwide Interbank Financial Telecommunication (SWIFT) code).



Transferring money via PayPal to Johan @ (without spaces) is also possible.


Go to the website of

Login with your username and password (just like when you press the PayPal button)

Then click on transferring money (to the account name of Johan @ (without spaces) )

Give in the amount of money

Click on Okay



When ordering, also send an e-mail message (link).