The Municipal Water and Sewer Service strives to keep the contact details of all its customers up to date in order to properly contact you regarding any notice or communication related to your supply.

Among these notices, we may include notifications of excessive consumption detected at the property, returned bills, etc.

Whenever needed, you can change your contact details:

• Phone.
• Email address.
• Correspondence address: This is the address where you will receive paper communication.
• Whether you wish to receive bills electronically or on paper.

If you have changed any of the above-mentioned details, please provide us with the new information via email, attaching the following documentation to ensure proper communication.

• ID number of the holder or contract number. You can find it on any of your bills.
• ID card (DNI) on both sides.

If you are changing the contact details of a contract for which you are not the holder, you must also attach:

• Document signed by the property owner authorizing you to domiciliate your bills. (We attach the document so you can download it, fill it out, and sign it.)
• ID card (DNI) on both sides of the property owner.

Once the change is made in our system, you will be notified by receiving a copy of the contract via email.