Called me 4 times in 15 min no message was left

same with me with in 5 minutes 4 calls

This number did same thing and I blocked number calling back and music play then person answered kinda. Do we have any idea who

This was a caller from US Insurance about an insurance quote I requested.  They said they had an agent available and then put me on hold to connect to the agent.  After several minutes, I hung up and blocked the number.  I don't have time to deal with that.

Called twice, answered the second time and guy was rude.  Wouldn't give much info.  Is a concierge service for many insurance companies.