COASTAL PREMIER SOLUTIONS If it looks too good to be true , it probably isn't Internet, Florida

I recieved an call at my residence from a person identifing himself as Shelby Bryant from Coastal Premier Solutions offering to sell my Timeshare.  He asked me some questions about my timeshare and if I was interested in selling it and ended the call.  The following day I received a call from Bob Bender saying he had received an offer for $3000 more than I was asking and had secured a escrow check for $3500, however, I would need to give him a credit card number so he could charge the account for the amount of $1388 for closing fees.  At that point I ended the call. These three numbers showed up in my caller ID.  561-665-8359, 561-65-8335, 561-665-8336.  When I tried to call back using the number they gave me 877-800-0603 the call was never picked up. Looks and smells like a scam to me.