Who called from 7204549346

Recieved a call from this phone number wanting to know if I wanted to lower my credit card interest rates.  I question them and they hung up on me

Keep getting calls from this number but they hang up??

I have gotten 2 calls this morning. I called the number back from my cell and the message is that the person has not set up their mailbox yet. Then it hangs up on you.. Looks like a scam to me

Caller ID stated "cellphone", Colorado.  This is supposedly a land line number, not a cell phone.  Did not answer and they left no message.

Caller ID is Wireless Caller. Keep calling with automated message asking you to push 1 if you want to lower your rates. I confronted the agent and told her I was on a do not call list and never to call here again. They've called several times since.