Ixoracart - Wrong product delivered

I've ordered mustard yellow saree but I was delivered with black saree before Diwali I tried hard to contact them for exchange but I couldn't reach them because I've contacted them through the mail ID which they were given in their own website but that mail ID is directing to another online shopping website that is peachmode. Initially the representatives responded to my messages and asked me to send the pics of saree and bill details but later on they told that it's not their product as it's named ixora in the bill and they are from peachmode after knowing this without clicking the mail link which is directing to peachmode I typed and mailed my queries to ixoracart but my mail wasn't delivered and I got a notification that mail address is not valid/existing.