You can write a message to us by tapping the Feedback button on the left side of the home screen. 
 
 

Please also note that many questions are answered in our FAQs. To reach the FAQs, tap on the gear icon in the top right corner of the game and then on “FAQ & Support”. 
 
Here you also have the option to contact us if you do not find the answer to your question. 

Our team generally works Monday to Friday from 9-6pm Central European Time. We aim to answer all customer service inquiries within 24 hours on working days.