Imperia - Ravioli Maker Attachment

I ordered this for my Italian husband, who makes fresh pasta weekly and who had been looking at and was considering getting ravioli attachment for his manual machine. I figured I'd surprise him by buying this. He was very excited--commented on how well-made it was and studying the mechanism. But it was not compatible with his pasta maker, which is a Marcato Atlas machine and this is only compatible with Imperia machines. My bad, I know. So I requested a return and apparently they don't do refunds--will only issue store credit. Bummer.