Received a call from this no where I was greeted by an Indian-accented gentleman who told me that I was invited to collect a $250 travel voucher but wasn't able to give me a satisfactory explanation as to how my contact details are passed to their side.  I suspected it was another time-sharing scam which I've came across twice, that both had been unpleasant experiences.

I gave the caller a piece of my mind and hung up his call.