I just won a contest ,and someone called me to verify it?PLEASE HELP,10 POINTS!!!!1?

could it actually be a real thing,cause one time my mom won a contest and all it was was to like plan a to like travel to some states and what not.hat was like 5 years ago, now,the contest was to win a car,i forgot what type,should it be a scam to try to sell me something or like to join some travel sellers club,they also told thruoght the phone that at the place im supposed to go claim it at theywere going to give me some $40 preloaded card,like a an american express,so if you have any expirience please help me!!!!!!!1 not oly will the best helper get 10 points,but i will choose them as best answer for evry question i ask,thnks!!!!!!!1