called twice to my cell, but did not leave a message

I do not know who called; was on the phone , no msg left

Got a call listened to message said I had looked at their website I could press one to say yes to their redemption center offer or 2 to press no thank you. I pressed 2 I hope it wasn't a scam when I pressed 2 to grab my info or put me in some weird list targeting me or my accounts or using my number to spam others. It was a female voice speaking English in the message. I don't know how they got my cell number I am careful giving it out.

Called my cell phone which is on "do not call" list. No message.

Rang once, then hung up. No message.

Got a call, picked up on first ring, no answer.

Just got a call from this number a few minutes ago. Googling the number reveals that it (supposedly) originates from the Belfair, WA area. Caller doesn't leave a message. If you call the number back, you immediately get a machine that says (paraphrased): "Hi, this is Jule from Reward Redemption. We're calling you because you have visited one of our affiliate websites and in appreciation have a rebate card for you. Press 1 to claim your rebate card, or press 2 to be placed on our do-no-call list". This call occurred within less than half an hour of my purchasing Angry Birds on my iPhone, so I don't know if my phone is giving out its number to these third parties, or if it's just a coincidence.

Only rang a few times then hung up.  No message left.

4 rings, no message

Rang once, hung up before I could answer.

received call, no message.  must be telemarketer.

I just got a call from this number, too.  No message.