22.07.2025
Grabarz XCT puts authentic customer voices at the heart of the new congstar campaign

The Hamburg-based agency Grabarz XCT has developed the new campaign “You celebrate us. And we celebrate you.” for congstar, placing the voices of the congstar community at the center of the brand’s communication. Customer satisfaction and trust are brought to life in an authentic and emotional way.
The creative team at Grabarz XCT has crafted a campaign that makes real customer voices both visible and audible, translating the enthusiasm for the brand directly into the communication. The campaign, launching today, spans out-of-home placements, digital measures and two films that put customers at the heart of the storytelling and give their positive feedback a stage. The foundation for this is the large number of enthusiastic responses on social media, review platforms, as well as an above-average Net Promoter Score (NPS), all of which underline congstar’s strong level of customer loyalty. After all, satisfied customers are not only the best advertising – they’re also congstar’s biggest motivation.
For the launch, musician PaulWetz has reinterpreted his song “Ode an den Bass,” enriched with real comments from the congstar community. The result is a soundtrack that entertains, surprises and conveys genuine emotion. A second film will follow in September, focusing on congstar’s home internet offering: Here, creator and comedian Parshad Esmaeili brings community voices to life with her characteristic humor.
Both executions rely on authentic, real comments from the community, lending the brand credibility and authenticity. At the same time, the campaign stays true to congstar’s visual signature: bold, reduced, and highly attention-grabbing. Director Adam Munnings brought the campaign to life with a strong sense for diversity and contemporary brand communication. Behind-the-scenes clips offer additional insights, while congstar creators like Domingo and Valentina carry the customer stories into the digital community.
“The real voices of the community are the heart of this campaign – they stand for trust, relevance and credibility. Our goal was to use these voices so powerfully that they become the driving creative force behind the entire communication,” says Mattes Hoffmann, Managing Director Creation at Grabarz XCT. “congstar is a brand that truly lives fairness and closeness – and we translated this spirit into creative ideas that anchor the brand in people’s everyday lives while underlining its authentic relationship with the community,” says Joe Fuchs, Managing Director Consulting at Grabarz XCT.
Anke Drewicke, Head of Marketing and Sales at congstar, adds: “Grabarz XCT impressed us with their creative energy and deep understanding of our brand. The campaign reflects our attitude and our appreciation for the people who make congstar what it is: our customers. With this campaign, we not only want to say thank you, but also send a clear message of fairness and authenticity to the market.”
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