UPS has terms and conditions (PDF) that include the following:
4. Customs Clearance
When a shipment requires customs clearance, it is the shipper’s obligation to provide, or to ensure that the receiver will provide, UPS with complete and accurate documentation for the purpose but UPS will, unless instructed otherwise, act on behalf, at the expense and at the risk of the shipper or receiver in obtaining customs clearance. Provided that, in the case of shipments whose points of dispatch and destination are both within the same customs area, UPS only performs customs clearance if instructed to do so. The shipper also agrees that UPS may be considered as being the receiver of the package or the shipment for the sole purpose of appointing a customs broker to carry out any customs clearance insofar as is allowed by law
They've used these terms to charge me an additional "brokerage fee" for a package I sent. The charge is 113.29 euros and the package won't be released unless I pay them. But at no point is the amount stated to the user - they could well have charged a 1000 euros and I'd still be on the hook for that.
In my case, the contents of my package were worth less than the broker fee. Is it even legal to have T&C that just let them charge anything they want? Is there an ombudsman or some other government body to whose attention I can bring this to?