Who called from 7203862991

I received a call from this number they left no message so I returned the call and found out that it is telemarketing for a rewards card that I did not sign up for.

they called and it is Lisa from some rewards website spouting lies about a reward card.

Got a call on my cellphone from this number.  Some B.S. marketing outfit with a 'rewards' card.  I hung up.

This number called me twice in a minute on personal phone.  I didn't answer.  They left no message.

Received a call from this "Unknown" caller at 9:06am on my cellphone.  
I do not answer calls from "Unknown" persons....