Bests & Worsts Reviews from Amazon

I previously wrote a glowing review of this product, but my opinion has soured. After using the product since November 13th, the machine catastrophically failed causing me to fall off the back of the bike onto my head. The weld on the seat stanchion broke. I have tried to contact the company via Email (there is no telephone number) for replacement parts and they do not answer. I called Amazon and they offered me a $30 promo for items stocked and supplied by Amazon. This vendor should be fired from Amazon and this product banned for sale. Oh, this is 30 days out of my warranty.