Calling and saying provacative things to our business

Received an automated call offering me life insurance.  They did not mention Walmart, but that is what came up on my caller ID. I tried to call the store and the operator put me on hold and I never got to talk to anyone , nor did she return.  I hung up after 13 minutes on hold.  Still have not reached the store mgr.  Called Bentonville, all I got was  put on hold there too.