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15 Results

Mobile plan for low data use: which plan fits 2 to 5 GB?

22/09/2026

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Mobile plan without a temporary promotion: which price stays after a year?

15/09/2026

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Test-Aankoop did the maths: switching easily saves you €100 a year

14/07/2026

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Heading on holiday? Don’t pay for data you won’t use

30/06/2026

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Don’t pay for gigabytes you never use

05/06/2026

Test-Aankoop compared the cheapest mobile plans on the market right now. Their key piece of advice sounds very familiar to UNDO: don’t buy more data than you really need.

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What is the cheapest mobile plan in Belgium?

26/03/2026

Finding the cheapest mobile plan in Belgium seems very simple today.

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Looking for a sustainable telecom operator in Belgium? Here’s what you need to know

23/03/2026

The telecom sector plays a key role in our digital lives — but it also has a growing environmental impact.

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UNDO offset 139 tons of CO₂ last year – Together we make a difference 🌿

11/04/2025

Between July 25, 2023 and July 24, 2024, we offset no less than 139 tons of CO₂ together with our community.

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UNDO x Duurzaam Kantoor: Greener Workspaces, Smarter Businesses

21/03/2025

At UNDO, we believe that sustainability goes beyond carbon-neutral mobile solutions—it’s about real, measurable impact in every aspect of business.

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