What is a mortis causa transfer?

A “mortis causa” transfer may be carried out following death of the customer when there is a first-degree relationship between the old and new customer (e.g. spouse, son/daughter, father/mother, brother/sister).
In the event of death of the contract holder, the transfer is free of charge to the heir or other person residing in the real estate unit of the utility; the operator assigns the security deposit paid by the previous customer to the new contract, and may require the new user to pay the balance of the last bill prior to the transfer
(Atto 655/2015/R/idr Annex A (RQSII) Article 16- Resolution of 23 December 2015 -ARERA)