got call from this number and no one is on the phone, just machine about you can win $50,000.

i began getting these calls after i did a best buy gift card survey smh...how to get to stop

Began getting calls from this number yesterday. No one is on the other end when I picked up and when I called, it went straight to muzak and something about "your call is important to us". Disgusted, I just hung up.