allen johnson, coin trust financial services

check for the amount of $4250.00 came in the mail. i called the number giving in the letter and spoke to allen johnson @ 1877-533-3050 ext 251. He instructed me to deposit the check and call him back. I went to the bank and spoke with the manager about this international swepstake, and he advise me not to deposit the check. i'ts a scam he said.