https://gist.githubusercontent.com/tschelabaumann/54a7ca464278e518d39d5f50456ac55e/raw/b3136f07c8457152aa1b39d00d8b097113d2a233/paymill_preauthorization_example.php
https://gist.githubusercontent.com/tschelabaumann/4232879/raw/f5f3e69a122ec57fbb3c156b21b4faabe848b527/paymill_payment_form.html
https://gist.githubusercontent.com/tschelabaumann/4194175/raw/b3ed8c5500cc349954f135c651a603b1245c5ba5/request.php
https://gist.githubusercontent.com/tschelabaumann/4194158/raw/970721b063f9df7185af27a58ec0285f7f4a05e9/paymill_payment_form.html
