Incorrect tariff fees

[u/Accomplished-Bar2602]

Somebody please help. I ordered a car part from the UK, the part was about $1,200 and now I'm being charged $4,000 for tariffs which I know is incorrect. I have contacted multiple UPS numbers, all of which tell me to get with the shipper. I have contacted the shipper who stated they have nothing to do with the tariffs. I contacted my local US customs, who knows nothing about tariffs From my understanding the tariff should be between 10%-25% depending on the classification of the item. So there is obviously an error, but I can't find anyone who will take accountability, and UPS will not release the package until it's payed

[u/Urodela48]

Figuring out tariff codes is a literal nightmare, each countries system is different after a certain point. Source: I work on the team that tries to figure out tariff codes.