If you have any questions about your subscription or your registration for one of our events, or if you wish to change your contact person or address, please contact the DVV Customer Service.

Contact us: 
Monday - Thursday: 8.00 AM – 5.30 PM 
Friday: 8.00 AM – 4.30 PM 

Subscription: +49 40/23 71 4 260 
Events:   +49 40/23 71 4 250
Book order: +49 40/23 71 4 440

E-Mail:
kundenservice [at] dvvmedia.com

Customer service address: 

Heidenkampsweg 73-79
D-20097 Hamburg

Postfach 10 16 09 
D-20010 Hamburg