9.1 Returned goods will only be accepted if expressly approved
in advance by burster.
9.2 Returned goods that have not been approved by burster
will be sent back at the cost of the sender.
9.3 Custom-made products may absolutely not be returned.
9.4 A handling fee will be charged for administrative expenses
for incoming goods inspection and other handling.
9.5 Transportation costs for the return of goods shall be
strictly borne by the sender.