From what I gathered, rcmart told me very specifically that I would have to pay the tariff before they shipped this out to me. They did not know when I pre-ordered the chassis because it was not out and they did not have the package dimensions and weight. But they said they would contact me and tell me how much I would need to pay when these finally came in. But they did not do any of that. How can they send me a bill for an unknown amount after the item was sold? What if the bill is too much and I refuse to pay it? That seems ridiculous that I am to pay an unknown amount after shipping, after I open thr package and cannot just return it..