Who called from 4257405527

The person has called dozens of time without leaving a message. Finally, he left a message but did not leave his name. He said he wanted to talk to me about my company.  We almost exclusively communicate via email as we have distributors who handle our work. I think he is a debt collector.

debt collector

Left msg they are Sentry Credit, a debt collector but did not say who they are calling for and on behalf of what co.