Partenamut

Health insurance funds (mutualities) · Checked on 29/09/2026

Phone

02 444 41 11Call(Mon-Fri 8:00-17:00)

Opening hours given by the company. Public holidays: as officially announced; otherwise shown as “Check opening hours”. Phone lines usually answer in French or Dutch; many also speak English.

Email

plaintes@partenamut.be(complaints)

Online form

Open the form ↗partenamut.be/fr/aide-et-contact

The form may be in French or Dutch. Many sites have an EN switch at the top.

Address

Boulevard Louis Mettewie 74-76, 1080 Molenbeek

Source: partenamut.be

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Ready-made letter

Belgian companies work in French or Dutch and are not obliged to answer in English. Read the letter in English, then copy the French or Dutch version, fill in the fields in square brackets and send it through the form, by email or by registered mail. Always keep proof that you sent it.

Complaint to your health insurance fund (refund or certificate)
[First name Last name]
[Address]
[Postcode Town]

To the customer service of Partenamut

[Town], [Date]

Subject: Request for [refund / certificate] — member no. [Member number]

Dear Sir or Madam,

On [Date of the first request], I sent you [a treatment certificate / a request for a certificate] for [Type of treatment] on [Date of treatment].

To date, I have not received [the refund of EUR [Amount] / the requested certificate]. Please process my request and inform me in writing of its progress.

Please find enclosed [List of documents].

Yours faithfully,

[First name Last name]

Tip: in Brussels and Wallonia, send it in French; in Flanders, in Dutch.

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