I'm a dedicated bottom feeder who buys a lot of my stuff from .com store blowout sales. But this definately sounds like a situation where a LBS purchase might have provided better support. Did you buy the completed bike from Supergo over the internet or through the mail? Or did you purchase it at a brick and mortor store? Or did you mail order the saddle as a seperate component? Your options, as well as your chances for a satisfactory resolution, depend on the answers to those questions.

If you bought in person I would definately go back to that store and show them what happened. If they value you as a customer, and most LBS's do, they should do all they can to make you happy.

If you mail ordered the saddle seperately send it back with a letter to customer service. From the sound of your post it sounds like it's useless anyway, so what could it hurt to try?

If you mail ordered the complete bike you should call and talk to someone, but they might demand you send the whole thing back (which would suck) just to put you off.

DanO