Cell rang a couple times then hung up before could answer

Rang, and hung up.

Rang once then call ended before I could answer. It's a scam, has to be. I blocked the number

Lisa Reward Redemption SCAM
Call back gets "Hi, this is Lisa (or Christy) with Reward Redemption...."  It's a big SCAM.  BBB has a warning for consumers.  Read here:   http://www.bbb.org/central-florida/business-r ... do-fl-171532464

If you're on the DNC list, please take a moment to report the call here:
https://complaints.donotcall.gov/complaint/complaintcheck.aspx

Called me at 8 a.m. Barely rang once then hung up, no voicemail. Never had time to get to the phone. Didn't call back