fraud

Hi I was called 4 times this weekend saying I have won 1.5 million and a mercedes benz...rock on, so I asked the guy who sounded Jamican...from American Cash rewards from Nevada Vegas what the catch was...I asked him to send details through my email...well ofcourse theres an attachement on it...DONT OPEN IT... he phoned again asked me to open attachement to get the file number...DONT DO IT...never opened it, told him if I have won that amount of money then you would be delivering it to my door...very persistant guy...so again told him to send me details in the mail...he said but it would take too long...said to him not really bothered as it doesnt make any difference in time...this is a big scam...put the phone down...I didnt give him any info on myself, my address or anything...