GFK Growth from Knowledge Reviews and Complaints by Consumers and Customers SnapShot

Last Updated On: December 12, 2014

GFK Growth from Knowledge Corporate Contact

Business Name: Growth from Knowledge Custom Research LLC
Corporate Address:
75 Ninth Ave 5th Fl
New York, New York 10011 USA

Customer Service Contacts

Corp Phone Number: 212-240-5300
Corp Email:
Company Contact: Matthias Hartmann - CEO
Corp Website:

GFK Growth from Knowledge Customer Ratings and Reports

Customer Ratings

Average Rating: 1.00 out of 5
Based On: 2 Reviews
Number Of Comments: 2

Consumer Loss Reports

Reported Losses: $7,500.00
Average Reported Losses: $3,750.00

Latest GFK Growth from Knowledge Complaint

Is GFK Growth from Knowledge a Rip Off, Fraud or Have They Scammed You? WARN OTHER CONSUMERS By Sharing

Category: Work From Home Directory ListingGrowth from Knowledge Custom Research LLC Listing

45 min shop, they refuse to pay me.

GFK Mystery Shop –

I have been doing mystery shopping for a long time, but this company is ridiculous – asking repetitive questions.

Then after doing a 45 min shop, they refuse to pay me.

GFK Mystery Shopping – 401 Park Avenue South, 8th Floor, NY 10016 | 903-920-1924

25 Most Recent GFK Growth from Knowledge Complaints

More About GFK Growth from Knowledge

Alternate Business Names: GFK Research Group | GfK Custom Research LLC | GfK Strategic Innovation | Globaltivity | GfK Custom Research North America |

Consumer Comments For GFK Growth from Knowledge


    Same here – they owe me many points from last year and this – they are ignoring my e-mails lately or giving useless replies that show they haven’t read properly.
    I did one yesterday for 160 points, and one the day before for 20 points – both fully completed, (which is confirmed by a message when clicking on the invite link again). No points yet.
    I want to know where to report them properly.
    This is their website link

  • Same here no response to several requests for more info.


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