saw on half.com that someone was selling a box dvd set for $0.79 + shipping = $3.28! im guesing this is a mistake cuz its brand new but im at checkout now and want to know something. can the seller say he made a mistake and really charge me more? i don't know the terms on half.com. i don't really want this box set but i can resell it

any ideas, cuz i don't want to be screwed and charged like $60!