just had the same call.  they said in a third phone call that they needed us to purchase a "green dot" gift card with $399 on it.  then "officials" would come to our house and escort us to our bank to deposit the check for $550,000.00.

total scam

caller claims to be from publishers clearing house.  said I won $550,000. came up on caller id as unknown number.Didn;t believe PCH would call; I'm sure they send a certified letter.