Just received call. Did not pick up.

Called four times in two minutes did not leave message, only rang for a few seconds

I don't answer to a phone number I don't recognize.  No voice message.  Tried calling back from my work phone.  Message the I had the incorrect phone number

received a call from this number which showed up as being from "Chicago, IL" but i didn't answer and no message was left.  when attempting to return the it played a message of "your call could not be completed as dialed, please check the number and try again"

Got a recorded message that I could lower my interest rate on my credit card and that today was the last day to get the offer. Please press 1 for an operator. I pressed 1 and told the man I wasn't a customer with them to put me on the do not call list. He asked if I was married, I asked what did it matter, just put me on the list. He said f*** you. I was shocked. I asked to speak to a supervisor and was told to suck his d***. He continued with the abusive language even after I told him I was reporting him to the police.