If you no longer wish to participate in GfK Switzerland’s market research survey, you can notify us of this by post or by email:
Please write to us, citing your address and the telephone number to be blocked. We cannot block your details without this information.
GfK Switzerland
"Address Blocking Process"
Obermattweg 6
CH-6052 Hergiswil (NW)
Please write to us, citing your address and the telephone number to be blocked. We cannot block your details without this information.
Cancellation via email is just as valid and mandatory for us as a cancellation by post.
We would like to draw attention to the fact that this cancellation will ONLY apply to surveys by GfK Switzerland.
As a market research company, we should like to distance ourselves from advertising and the selling of services by telephone or via the web. We do not take account of the stars in the telephone directory to avoid advertising, as we do NOT advertise.
Edith Blaser
Head of Address Management
+41 (0)41 632 98 05
edith.blaser@gfk.com