Amazon fraud help

wondering if this has happened to anyone else. A friend of mine texted me “I just got your new book, i love it!’ The problem is I never received notification and I do fulfillment by merchant so I had no idea how she got it. I called Amazon and after a deep dive the the Amazon page looks almost exactly like mine however the ASIN # is different and the publisher name is wrong too. I assumed they went through Ingram because that is the only book I have POD, the majority of my books I sell on my own with off-set printed books. I have no idea how this is happened and Amazon is looking into it. Any words of wisdom would be greatly appreciated.