Tell them you want to return it for a full refund at their expense (meaning they pay you for the shipping cost) which will be about $27 Canadian with tracked shipping (Zavvi recommends tracked shipping for returns).
They told me there was plenty of stock when I asked to return my spine slash on the 15th. If they **** this up, that's the end of buying anything else from these jokers, just isn't worth the hassle after the last 9 things I ordered - 8 were damaged and 1 went missing (and yeah, they make you perform like a circus animal to get that rectified). Allowing them 6 more attempts to **** up an entire Star Wars set plus the 2 lotr/hobbit sets is just insanity on my part as it is.
They never even offered me a replacement in the first place, straight to a 15% refund for me. First time I’ve ever contacted them, though.they may offer you a replacement, but with an entire day between each correspondence — no matter how quickly you reply to their message — and this presumedly available stock dwindling in the elapsed time, they'll inevitably land here: "oops, we have no replacement stock. how about a partial refund?"
skip all that runaround and get a full refund. they're tax dodgers, they can afford it.