The Swiss authorities online
You believe that the debt enforcement proceedings were unjustified. You filed an objection notice and the creditor decided not to pursue the debt. Three months have passed since you received the payment summons.
You have paid the amount you owed or come to some other arrangement with the creditor.
You cannot make a request asking for the summons to be deleted from the register (e.g. because you did not file an objection notice) and the creditor does not agree to drop the debt enforcement proceedings: