Keeps calling

Claimed to be with a Health and Wellness center.  Said I was referred to them, after I asked how they had gotten my cell number.  Told them to remove me from their list, and to never call again.  He sounded a bit slow.

Got a call from this number.  Says clinton township on caller ID, I don't recognize the number, so I didn't answer.

They did not leave a message.  Called at 8 pm too!