Submit a complaint
To submit a complaint, fill out the form below or email us at complaints@21X.eu. Please include as much detail as possible. We will investigate and respond as quickly as we can.
To submit a complaint, fill out the form below or email us at complaints@21X.eu. Please include as much detail as possible. We will investigate and respond as quickly as we can.
If you have a specific enquiry, please fill out your details in the contact form below.
Please fill out your contact details and the nature of your enquiry. We will endeavour to respond to you as soon as possible.
21X AG
Große Gallusstraße 16-18,
60311 Frankfurt
Germany