Segway of New Mexico

I purchased a stand that was specifically advertised as being compatible with all Segways, but actually it only works with second-gens and I have a first gen. I have now paid for multiple attempts to try to ship the item back to them (at their request), and they have tried to blame me, the post office, and other excuses for their false advertising. I was always courteous to them, but in spite of that the e-mails they sent me have become unbelievably rude for someone who is supposedly a professional representing a business (Shawn Desmond).