Our business got charged a 200% tariff on a UPS import from Japan, completely incorrect. The dispute is taking much longer than OP’s. Either UPS doesn’t know what they’re doing, or they willfully charge higher fees, or maybe they’re just understaffed from the massive layoffs they did to try to save their stock price.

edit: as a biz you (we) should use a legit import broker instead of UPS. But individuals like OP are stuck with no option.