In which case Amazon won't step in until you have been through TV Tech Ints complaints procedures. But make sure you do it through Amazon.
I can't recall the exact button, but you click it via the Amazon order details page, and you'll be signposted through to a query/complaints form. Once that's sent, the retailer has a set time to respond, or Amazon will instigate the return/refund for you.
Annoying if you weren't expecting it, but not the same bunfight eBay and PayPal can lead to, from reports.
Apologies if I misunderstood the OP but if it was a replacement remote control did you not look at the more man+dog sites. I found one to replace a *really* obscure remote a few years ago on eBay.