This company is a water testing company. About 2 weeks before getting this call I received a water test kit in the mail and sent it back with a sample of my tap water. This is a follow up call from that company.
I apparently won a contest and they wanted to test my water. They set up an appointment and didn't show, so I left the house. Sounds like it's connected to the same type of thing. They don't leave a message and I'm not interested in dealing with a company or anyone that won't keep their appointments or who won't leave messages.