Verified: 30 March 2026 06:25 pm CET
Industry: Electricity & Natural Gas Provider
Jurisdiction: France
Primary Regulator: Médiateur national de l’énergie (Mediation) and CRE (Systemic Oversight)
Important Safety Warning: Beware of fake customer service numbers on search engines. Scammers frequently target consumers with “spoofed” phone calls pretending to be Eni or Plenitude to threaten an immediate power shut-off unless you pay a “late fee” over the phone. Plenitude staff will never ask for your account password, and legal power reductions take weeks of written warnings.
Level 1: Customer Support (Service Client)
- How to complain: Your first legal step is to contact the standard customer service layer under the new Plenitude brand. You can log into your “Espace Client” online, call the central hotline at 09 78 46 17 17 (free service + price of a local call), or send a letter by post.
- Address: Address your initial written complaints to Plenitude Service Client, TSA 80330, 35507 VITRÉ Cedex, France.
- Availability: The customer service hotline generally operates Monday to Friday from 9:00 AM to 5:00 PM (CET).
- Timeline: The operator generally provides a substantive response to written complaints within 15 days.
- Source Verification: According to the official Plenitude France - Aide et Contact guidelines.
Level 2: Formal Written Complaint & Mise en Demeure
- Who to contact: If the initial Service Client fails to resolve the issue or denies your refund request, you must formally escalate the dispute by sending a registered letter with acknowledgment of receipt (Lettre Recommandée avec Accusé de Réception - LRAR) to the second-tier national consumer appeals department.
- Address: Address your formal letter to Plenitude Service Consommateurs, TSA 60220, 35507 VITRÉ Cedex, France. (Crucial: You must use the TSA 60220 postal code, not the Level 1 code, to reach the correct escalation tier).
- Timeline: The Service Consommateurs generally provides a final response within 30 days of receiving your registered letter.
- Source Verification: Verified directly via the legal procedures published on the Énergie-Info Réclamation government portal.
Level 3: Regulatory Authority / ADR (Médiation)
- Energy Disputes (National): For unresolved disputes regarding billing errors, estimated meter readings, or contract terms, you must file your dispute directly with the independent government ombudsman: Le Médiateur national de l’énergie.
- Portal: You must file your national mediation claim via the secure online platform: SOLLEN.
- Timeline: You can open a case with the National Energy Mediator only after 2 months have passed since your initial written complaint to Plenitude, provided you have not reached a satisfactory resolution. The Mediator then has 90 days to render a decision.
- Source Verification: According to the official charters of the Médiateur national de l’énergie.
Level 4: Legal Action
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Pre-Litigation: You must have proof of your written complaints (LRAR to the Service Consommateurs) and proof that you attempted mediation before a French judge will hear a small claims case.
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Filing the Lawsuit: For direct disputes with Eni Plenitude under €10,000, private consumers can bring their case before the local Judicial Court (Tribunal Judiciaire or Chambre de proximité). Claims under €5,000 can be initiated via a simple declaration (Requête) without needing a lawyer.
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Source Verification: According to the Justice.fr - Saisir le tribunal judiciaire official government guide.
Community Action: Is the Service Consommateurs refusing to correct an absurdly high estimated billing error, or are you looking for the correct legal templates to draft a Mise en Demeure to Vitré? Reply below (do not share your passwords, bank details, or PDL/PRM meter numbers), and our community will point you to the right resources!