Who called from 8018204971

I received 5 calls from them on 2/29/2013 and asked that they quit calling me.  Today, I recevived another call at 9:35 a.m.

I received 5 calls from them on 2/27/13 and call them back and asked them to please quit calling me.  Today I received another call.

I got a call, I wasn't home I called it back it said Thank You for calling Metco Pharmacy. Don't have any idea what they are wanting.

FOUR times in a row at 7:00 in the morning, really????  All hang ups!

They keep calling and laughing and hanging up.  I want it to stop.