Complaint Review: Kevin (he said he was a loan officer from the Lending Club)

I received a phone call from this Kevin guy he said he was from the Lending Club and I was approved for the loan I needed.  Kevin told me since my credit score was to low I would need to show a sign of good faith, and  he explained to me that he was going to deposit an amount of money by check thru mobile banking and I was to send it back to Kevin by purchasing 2 giftcards at WalMart first and put money on each of them which was 500.00 and then 475.00 on the second card which I did what he asked me to. 

I then called Kevin Gave him the information he needed from the cards he then told me that the loan papers would be sent to my email account and the monies would be there in 45 minutes.  Today I received a call from my bank to find out that I am a NEGATIVE 1,045.40 in my checking account.  The check that Kevin had deposited and had med take the money out of my account and sent to him had bounced now I need to come up with all that money to make my account positive again.  I have tried to call Kevin's number but it is NO LONGER IN SERVICE.