If you have any questions regarding your subscription or your registration for one of our events, if you change your contact persons or your address, please contact DVV Customer Service

We can help you:
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