Got a call - no message - ID says "energy star con"  guess it is a construction company - tired of unsolicited calls

Calls frequently and leaves no message.  I called back again and again asked them to stop calling me as I want nothing from this company - energy star construction.  Woman wanted my name and phone number and I said hell no - you already have that as you keep calling.

Have been getting calls almost every day for months from this number identified as energy star.  I have tried to tell them I am not interested and please don't call but they will not respect my wishes.