Hey Drew,
Thanks for your post and sorry to hear you’ve been affected by a seller who didn’t follow the rules. You are correct that buyers are only responsible for standard ground fees. FYI, We’ve got a major shipping overhaul underway (currently in beta testing) that will be fully released very soon. This overhaul moves shipping fees to “pre-paid” whenever possible, which will greatly reduce the occurrence of what you’ve described. But you’re probably a lot more concerned with solving your current situation…
In regards to your specific case, please create a new a support ticket via the LEx Help Desk. Be sure to include the order number so we can take a closer look and figure out the best path to resolution. Regards, John