If the holder of a Digiposte account dies, the notary or one of the heirs must contact Digiposte customer service in order to launch the administrative procedures. 

The holder of a Digiposte account can also designate a trusted contact who can, in the event of physical inability, death, etc., access the safe and documents archived inside. 

For more information about which documents to provide, please go to user help

The company should not cancel your user's registration. You will surely have numerous documents to transmit in the following months. In addition, if the Digiposte account was not activated, the user's heirs may finalise the process and retrieve the documents while the registration is in effect. It is especially important not to cancel the registration in this case.