Got my replacement When Marnie Was There today. Zavvi annoyed me by insisting on sending me a replacement, when I sent back the original for a refund, but they put a little sugar on top by replacing my standards Blu-ray with the Collector's Edition with the digipack and postcards. Plus thet delivered my FMA UE without a scratch so I can't stay mad at them for long.It's kinda confusing that both versions of Marnie are still listed on Amazon. Only easy way to tell them apart is the release date. Looks like the replacement version is being sold for cheaper too.
Gave the Blu-ray a play and it plays back just as it should, smoothly, no clunking.