You're in a different position to me, but I have an on-going hassle with Scottish Power.
I have a couple of flats I rent out, I have never lived in them.
In one, I had an Electricity contract while I was preparing the place for letting. My Letting Agent found a Tenant and on the due date I closed my account, settled it, gave them meter readings, advised them that it was now a rental property and who was in it. All seemed well.
The Tenant eventually stopped paying the rent and after a lot of chasing he vacated the property on 30/03/2017. I re-instated my electricity account and did a lot of work in the place getting it ready again.
I then received letters addressed to "Occupier" demanding £5,300+ - it seems Scottish Power had never set up a contract but had supplied electricity for 3 years 4 months. I forwarded all correspondence (plus demands from Sky, TV Licencing, Edinburgh City . . ) to his parents' house where he was living. It seems he didn't pay any bills!
I have new Tenants, who have an account with Scottish Power that is progressing normally. I closed my account and settled it so I think we are all squeaky clean.
Still demands are arriving addressed to "The Occupier", the amount has now risen to £6,600+. I have supplied Scottish Power and the Debt Collection Agencies with details (including copies of letting contracts) to enable them to chase the guy who left nearly two years ago.
I now have my new Letting Agent on the case as the current Tenants are concerned about all this (nice retired couple). Trying to get sense out of Scottish Power is a nightmare and they are well known for being totally incompetent.
My other flat (further North) has a pre-pay electricity meter, supplied by Scottish Hydro - no problems there!
Its hardly worth being a Landlord, the amount of hassle I get is enormous. Particularly in Scotland where we have far more regulation that benefits Tenants than you do in England/Wales.
Bob.