IBM Support follow up call

these guys called, no vm.

The heavily accented man asked for my son. He said he was calling from United Airlines, however the caller id said "Tulsa Financial O"

Same as above they called several times for the last couple of day.  No message left.  Assuming it is some kind of scam myself.

Same as 2 previous posts - received a call from the above number - Home caller Idea says it's from "Tulsa Financial."  Didn't answer the phone - assumed scam - they did not leave a voicemail but have called me 2 days in a row at this point.