keeps calling over the past 2 days - no one on the line - hangs uo after about 30 seconds

Hello, my name is Sean, I am calling from Bell Mobility, to let you know you have won a free phone..funny..cause i am a non believer..I kept telling him no..he kept persisting they were going to send it to me free..when i asked what address he was sending it..he didn't seem to know..unkown name and unvailble number..Scam Scam

Rec'd call from this number saying my name was drawn, and I won a free cell phone. 3 months free, after $18.00/month.  (free nights and weekends etc)
However, caller seemed to be Asian, and I could barely understand her.
She did say she was from Bell.  But she is not.  I called Bell Cellular to report this.

Rec'd call from this number saying my name was drawn, and I won a free cell phone. 3 months free, after $18.00/month. ?(free nights and weekends etc)However, caller seemed to be Asian, and I could barely understand her. She did say she was from Bell.  But she is not.  I called Bell Cellular to report this.

They have been calling several times for the last few days, no voice contact, however when someone finally spoke, there was so much static on the line, I couldn't hear them and they hung up!

Got a call from them at 1:55 am.  Recorded messages that said "hello, hello yes".  Hung up!
Not winning a cell phone at 2am that's for sure.