Trading Yoshi's New Island NA Club Nintendo code!

[JoJoCan]

I have a Yoshi's New Island 3DS Club Nintendo pin# and I want to trade it with a different Club Nintendo pin#

 

[marcko0412]

I'll buy it for 500 if you can't find any trades for it

 

[A-Link]

I'll buy it for 500 if you can't find any trades for it

That's what I did actually, but I was scammed with an already registered code. The guys then wouldn't refund me or even reply back to my PMs. Don't deal with this guy!