uSell and Guzu Sends bogus checks New York Internet

October 7 2014 I agreed to sell my onld iPhone in exchange for cash.  I completed everything as directed and received a check.  The chaek was deposited.  My bank contacted me to informme that the check was no good and I would be charged $20.00 in fees.  I imediatly contacte the companies involved and received the following;

Lindsey Young (Guzu)

Nov 14 15:05

Hey Neal,

This was a discrepancy on the banks side and for this we apologize. I can have a certified check sent in the amount of $75 to cover the original check plus the $20 in fees you were sent. I can have this sent first thing Monday morning with tracking to ensure speedy delivery!

Thanks,

Lindsey Young
Customer Service
Guzu.com
631-865-0022

and 

Now neither of them return email or phone calls.  This is a scam to get users to "recycle" their electrinic devices in exchange for cash.