Most bent manufacturers stipulate that a lifetime warranty only applies to the original owner. With all of the things that went wrong with this bike in such a short period of time, I would suspect it was either abused or perhaps in an accident before you bought it. Unfortunately Caveat Emptor (let the buyer beware) often applies. I've personally bought several used recumbents and never gotten stuck but I once worked in a bike shop and know what to look out for.