I ordered a few things online and ordered $43 overnight shipping via UPS. The seller finally sent me the tracking number, and on UPS's site is says the service is GROUND. That means that the seller made over $30 by changing the shipping rate, which is RIDICULOUS. I already emailed him and demanded a refund for the shipping cost difference. Is this ethical? And is there anything I could do to remedy the situation if the seller refuses to refund the money? If it makes a difference, their website has a E-Commerce by Yahoo logo on their website (don't even know what that does or signifies) I also paid with my Bank of America Card, but I doubt they could or would do anything.