UFD is committed to providing the best service, and to do so we are guided by the following principles:

Highest quality levels

Listening to your opinion so that we can improve our processes. To this end, we carry out surveys so you can assess the quality of our service.


Providing you with a response as quickly as possible, in accordance with the maximum legally established deadlines.


Resolving your requests in a fair, impartial and objective manner.


Providing a clear response to your requests. You are our top priority.

How can I file a complaint?

You can file a complaint yourself or through your supply company, or alternatively a third party can do so on your behalf. We can deal with your complaint in Spanish, English or Galician.

What details do we ask for when you send us a query?

  • ID and supply account holder name.
  • Supply address.
  • ID of the applicant, owner or payer.
  • File code.
  • File address.

How to contact us

Private area
Telephone number

Free general assistance
900 111 999

By post

Apartado de Correos nº 622
15080 A Coruña

How do we handle complaints?

Process the complaint

When you file a complaint through one of the established channels, we will assign it a code with the format ES-YYYYMM-XXXXXXXXXX so you can easily identify your complaint.

Analyse the complaint

We will review your complaint in detail to provide a response as soon as possible, and we will contact you if we require any further information.
You will be able to monitor the status of your complaint in your private area.

Provide a response

We will reply through our digital channels or by post within the legally established deadlines.
If you need to get in touch with us again, you can do so through our contact channels..