Seller changed Mind, Shipped Different Order due to Cost

[gravitybender]

Hello,

Bought and paid for a BIN auction for four car wheels (rims).  $109, free shipping.

I emailed seller to ask about packaging a few hours later, and he said that I only bought one wheel.

The auction description clearly states 1 set of (4) wheels.

He said it was a mistake.  He said the title said 'wheel' (among lots of other things), so the description didn't matter.

I waited, expecting him to cancel the auction and refund my money.  Instead, I see that he shipped one 15 pound package, which is one wheel.

For perspective, there is another auction selling four of these wheels for $130 or best offer plus $125 shipping.  So, it didn't scream mistake to me.  Sometimes, people need to move product out.

Now, I'm going to receive one very overpriced wheel - when the description said 4 - and he has been made aware that is what it said well in advance of shipping.

Is it correct that I'll have to file a dispute, and then pay out of my pocket to ship the wheel back?  What a hassle!  

This is why, whenever possible, I shop on Amazon.  No such nonsense there.

Thanks for your input .....