You may have been subjected to something like scam  #22, as described at
http://phonehelp.2truth.com/facts.html

That site also shows how other 800notes visitors have reduced the number of telephone scams and telemarketing calls they receive.  (Links to Amazon's phone blocker devices and apps, as well as government reporting sites are also provided).

I just got a automated voicemail saying to log into my At&t account at some website to collect $200. The url was something-points.com but was incomplete. Like the messaged started before it started to record it. I know something was phishy about it. I'd think At&t would use the usual channels to contact me which voicemail isn't one of them.