What did you call about?
Who did you call?
What message did you hear?
What message did you leave?
Most bank owned real estate that you would call about would get exactly the same response.
It is not a scam. It is standard operating procedure. I won't share the details here.
If you are calling that "too good to be true" ad, it may be just a teaser, misleading for sure, but not a scam.
"Send cash/western union and I'll send the keys"....well, that is Darwinism still at work.
If you don't know where and how to contact the folks you are conducting business with, you are on thin ice. Time and time again you will hear real estate professionals share good advise such as do business locally, where there are local business people to work with, hold accountable and refer future business.
Tom, if it quacks like a duck...it just might be a duck.