Don't know how UPS should be about this issue in your area.

A similar thing happened to me but I never received the damaged package, UPS automatically returned the obviously damaged package as soon as they received it and respectfully did not even attempt to deliver it to me in the damaged condition.

Sure it took an extra two weeks to receive the replacement package as UPS DID NOT report to towerhobbies WHY they were returning it which caused them to refund my Credit Card as they did not know why it was returned to them, which delayed the shipment of the new package as I had to email towerhobbies myself to ask about the delay, then had to wait for the refund to show on my Credit Card, and finally reorder everything. But I did receive it two weeks after the first order was returned and in excellent condition.

So, yes, it was considerate for UPS to return the damaged box to towerhobbies. But they could have had the decency to REPORT to towerhobbies WHY they were returning it, which would have resulted in me receiving the order sooner without having to reorder.

IMO it would be simpler and faster for you to go directly to Horizon and deal with them in the replacement part. UPS (at least in this area are not THAT reliable).

Good luck, please let us know the outcome.