man, how did u even buy the wrong thing from the first place? and i dont think u'll get a refound. sorry, BUT you can sell it for a lil amount of tc...
* ego gently touches Snorlaxen's manly chest while shivering at the thought of being caught out here alone with him.
Same thing happened to me, sucks worse for you though I only lost 2K TC on a head texture. And it is easy to accidentally purchase because there is no confirmation.