Have you recently received a letter from Barbara?

Cat71

We recently received a letter from a unknown person. There is only a piece of paper in it. Said: I am trying to reach you. Please call 1 800 *****. The name is Barbara.
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1 j: C  S( G0 }  M& K8 Q6 a* pI google it, a few people received it as well. A comment said: I guess I known it, it's sneaky...Anybody know what is that? I would not call her anyway. Just curious and remind whoever received it, do not call her back...