I agree scam is too a strong word (perhaps prang is a better one) given the fact that no money was involved (at least in my case)... .
Some years ago I was naive enough to call... fortunately the lady who answered wasn't angry at me and was even kind enough as to tell me his story: she had been subject to this sort of joke (notice the supposedly 24hr attention time and Spanish skills) and she had received a lot of calls at her home number... she didn't have a clue who might have have posted that false info.
later I have noticed that the appointed phone number and name has changed several times...
a revenge to old girl friends, I guess...
Merry Chrismas ALL!!!
Mexico, Distrito Federal.