What should you do if your mother passed away and you had the?
Contact the utility companies, find out what they have on record as to who do what and when. Keep all that info, the more detailed the better. I can't imagine that it is legal anywhere to turn on utilities in someone else's name. Its possible someone at the utility company screwed up in accepting the landlords requests. They are human and make mistakes, sometimes people tell them some bullshit and they accept it.