Ever wondered how Skype makes its money?

It seems that it has a 3 month credit policy - if you don't make a call
within 3, your credit is gone. I've just received what purports to be an
automated email from Skype to that effect, in which the untrue claim is made
that Skype recently sent me 2 emails warning me that my credit was about to
expire.

It may be that the automated email is a hoax (I haven't bothered going to
the links in the email to check on Skype's help page).

Michael Hawkins.