How do you say Dear user in German?

Can you help me translate this: Dear user, we are to inform you that societa srl has established a new service for sending all the ordinary documentations such as TARI (waste tax) and IMIS (tax on the houses) payment notices. To activate this service, that substitutes the traditional sending of paper documents, it’s necessary to fill the form attached, sign it and send it, along with a copy of an identity document, via e-mail to [email protected] or via fax to 0000 01234567890. We are available for any further details you may need.