How to file a complaint with energy company Coolblue Energie: the official channel, the deadline, and where to escalate (Geschillencommissie Energie) if it isn't resolved.
Tel 088 888 04 03. E-mail klantenservice@coolblue-energie.nl. Escalatie GC Energie (niet GC Thuiswinkel).
Source: coolblue.nl · verified 2026-05-29
Use the official channel above. Include your customer number, the connection (address or EAN) and what's wrong.
Coolblue Energie must handle your complaint. No reply, or no satisfactory reply, within about 8 weeks? Then you can escalate.
Bring your dispute to the Geschillencommissie Energie within 12 months of your complaint. Small filing fee, refunded if you win.
If Coolblue Energie doesn't resolve your complaint, you can take it to:
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