Its DTE Energy, calling for you to pay your electric bill, its late

DTE calling

this co keeps calling me it is dte and they want me to sign up for insurance on my appliances, i had about 11 calls i kept answering the phone and telling them to stop i didn't want their services, finally 1 person told me that i had to talk to a supervisor, i did that and the calls stopped for about a month now they are back this is the 3rd 1 today. i havn't answered the phone i'm out of min. on my phone and it costs me 50 cents a min. i need help. thank u.

they keep calling

I answer - nothing.  I call it back and it's a recording the number is not in service.

it's been calling for weeks now.

recevied a few calls from this number.  Called it back..."this number is not in service"  Finally picked it up and it turns out to be DTE Energy.