Wait a minute. Let me see if I understand this.
You consigned the bike to the UPS store. They quoted you a cost. They screwed up by seperating it into two boxes. They arbitrarily re-valued your property. Then They encountered a shipping problem - despite being the "Professionals" who you had paid an agreed upon amount for handling these specific services?
Are you saying that they are now trying to extort from you an additional amount BEYOND their original contractually agreed upon fees?
What was their explanation.
"Oops, were sorry! We're just morons who really don't know what we're doing and so we just messed everything up... so, now we want you to give us more money, to pay for our losses because of our screw-up."
That's outrageous! I would call the UPS C.S. toll free line, and certainly scan and send copies of your original invoice to the Customer Service department. Don't let these creeps get away with this. Threaten legal action to recover any mis-quoted fees amounts... plus Court costs,... plus compensatory damages for any actual logged time which you spend away from your work either in court, or while filing and pursuing the case.
To me, without seeing the actual agreement [invoice], it seems like a simple breach of contract... a slam-dunk decision in your favor - which they would NOT even want to get tangled up in for the pitiful initial amount of their screw up. With their billions of dollars of profits, they can afford to just eat the extra couple bucks they hope to get you to simply surrender without complaint.
You might also mention the local TV Action News investigative reporters have nothing better to expose than precisely this type of local consumer rip-off... and that you or your family members also would all be perfectly happy to continuously picket and leaflet on the sidewalk in front of the local UPS Store until you are entirely satisfied that you have successfully diverted away perhaps 1,000 times the amount of your over-payment, and have driven away hundreds of their future potential repeat customers. And that your children's schools might even wish to follow along with this as a school project - examining how our legal system works with regard to small claims courts and issues of consumer fraud.
Log and copy every scrap of paper, and file the complete online record of the tracking and any communications between you and the shipping agent.
In any case, my sincere prayers for Corky's speedy release and safe return.
FREE CORKY! ... FREE CORKY! ... FREE CORKY! ... FREE CORKY! ... FREE CORKY! ...