American accented voice states call is very important to us then plays hold music, scam caller.

Didn't even let the phone ring long enough for me to answer even if i wanted to

No message, presumably spam.

Caller: Telemarketing

Called then hung up, when I called number back was advised by computer generated voice that my call was very important and an agent would speak to me

Takes forever to respond when answer. Then thanked me for returning call?!? I didn't, they called me? When asked what it was regarding said was about $s available in government rebates. Regular nuisance calls slightly different numbers but same script, same name, same sh*t! Despite repeatedly telling them we did not ask for this call they keep calling every couple of days!