Bar5003,
Yes, I believe you are entitled to a full refund w/shipping OR an exchange for correct/similar item.
I hope you were intelligent & assertive with your e-mail regarding the problem. (Acting like a jerk often got me nowhere). If so, and the seller cares about his/her feedback, you should be taken care of promptly. Considering the seller has had only 1 complaint in 7 years... I think your chances are good that you'll get what you want.