It's about $100 to ship wheels.
I have been on both ends of this type of situation in the past 3 months. I put money down on a motorcycle, and had an alternator go out on me the very next week. I asked if he could please refund and keep 50 for his trouble. he was totally okay with it. I also sold something to someone here, then they realized it wouldn't fit, so I refunded his deposit.
Shit happens. You went about it the right way.
Droste Drummer. Droste like Frosty.
00" Red ZX3: Volant, ported throttle body, titanium wrapped SVT header, 2.5" exhaust, Magnaflow res/muffler, FR UDP, Mac cam gears, Lowered 2", Koni's.