For German only and for those 3G networks only (T-Mobile, E-Plus, O2, Mobilcom Debitel, Vodafone).
you must test my button in the page below as following scenario:
1- Click on the green button
2- You must enters phone number in window
3- Receives a code per SMS
4- User enters pin
* after choosing you, I will send you the URL of my page to start test the button.
I will give a $10 for this simple test.