As far as I know, KEH's only procedure for returning goods is to return the article for a refund (which is provided once the item is received). They will let you buy a replacement, charging for the item but not shipping, but the charge is made upon ordering. Since KEH doesn't know for certain that I posted the return item, I think this is reasonable.
I'm not sure if this is the original poster's issue, but this has been my experience.
Not true. Look at the back of any invoice you receive from them.
There are sections for "Return for Repair" and "Return for Exchange".
Anyhow, my own tale of woe continues...
This time I finally wised up. Instead of buying an "outfit", I purchased the Bronica SQ-Ai system items as separate pieces. I highly recommend this practice because:
a) Buying an outfit saves you no money at all. Believe me, if you compose the outift from separate items in equivalent condition it will cost EXACTLY the same
b) If there's a problem that is clearly attributable to a single item in the outfit - you can return it independently of the others (Mind you, this isn't always evident in a modular MF kit. A metering problem, for example, could be a problem with the body, the metering prism, or the film back).
Anyhow, the latest SQ-Ai body came with a focusing screen with some scratches. That, in theory, is ok because I knew I was purchasing BGN-grade equipment. The problem was that one of these wasn't a scratch...it was an attempt by the former owner to "fill in" a chip using a clear epoxy. That caused terrible scintillating reflections when focusing in a brightly-lit scene and those reflections distorted the meter reading by multiple stops.
So I'm returning the SQ-Ai body (and just the body) to exchange it for an EXC-grade body. KEH will pay for both the cost of shipping the item back and shipping the replacment body to me.
But I have to admit with SIX straight returned items, I'm feeling just a bit unlucky...