SHOES.COM Paid for 2 pairs of shoes, never got them after 2 months time. Charlestown Massachuetts

I purchased 2 pairs of shoes on their website, paid for them by credit card, but, never have received the shoes order.  Prior to placing the online order, I needed to change my address as I had moved over a year ago which I did, but, when I looked at the receipt, they had shown it would mail to the old address, so, I contacted them by both email and phone. 

But, their inefficient internal systems could not make the correction, even though I contacted them immediately and prior to shipment going out.  When I called, they would not help me and would not believe me when I told them their online system to change an address did not work. 

Two months later, they have my money and I have not received the order.  They do not provide a company address or contact information to their US corporate office on their website, so, I have no recourse to resolve this with them directly.