Darren,
Sorry - there was a post on the first page of this thread that indicated that some people were getting stuck with a bill for returning a different part number than what came with the car. I think you'll have to find someone else to swap with.
Hi,
I also have a 2012 upgraded EVSE from my leaf that I'll be returning, and I'm looking for anyone who wants to swap an unmodified EVSE from the same model year. I'm in the SF Bay Area, but otherwise you would need to cover shipping both ways.