Key legal question
Does a third-party debtor have standing to complain against an Art. 99 LP notice ordering account blocking?
Extracted holding
Yes, the third-party debtor may complain insofar as the notice affects legally protected interests, even though it cannot attack the validity of the seizure itself.
Extracted reasoning
Earlier case law allows complaints by third-party debtors against Art. 99 LP notices when the order infringes their own legally protected interests. The cantonal authority ignored the bank's argument that the blocking order exposed it to contractual liability toward its customer.