English translation:
1st Log in to your account
2nd Click at the top on the button "Deposit"
3rd After this you click on "Earn free ZP"
4th Choose "buy with mobile"
Now you're able to see many offers and some could give you more than 10k ZP
Just choose one of these offers, enter youre mobile number
After a few seconds/minutes you get a sms which contains a code that you have to enter on the page you've registered at
Now you have to wait for a few minutes and you get the zp credited on your account
By entering the code you accept a subscription which you have to terminate:
Search on the page where you've entered the code for the small print
There should be something like "For ending the subscription send a sms with the content "2313151231" to "12351232" or send a e-mail to "
" (should be done IMMEDIATELY)
Didnt test it