Who called from 3128095907

Caller ID showed this number and "unavailable." Don't answer those calls; no message left.

unknown caller left no msg. I dont answer these

"You've been selected for a free trip to the Bahamas. Just participate in a short survey to collect you're free tickets. Would you like to participate?"
After replying "no" it gave option to opt out - but I have gotten this call before and told them I want to opt out.

rang unlisted mobile. left no message.

Answered on mobile, no one there then disconnected