Question juridique clé
Whether the cantonal surveillance authority violated the appellant's right to reply by not communicating post-hearing submissions and documents.
Solution extraite
Yes. All new submissions and documents had to be communicated to the parties so they could decide whether to respond.
Motifs extraits
The right to be heard includes the right to know and comment on every new filing, even if the court does not order a second exchange of briefs. The cantonal authority failed to transmit the later material from the post office, the enforcement office, the bailiff, and the population register.