I would call also, don't believe what anyone says that's selling it.
When I bought I was told by the seller - power to the building was already paid, LOL.
It was paid to be at the road, that's it.
They came in 400' below ground, had to add another box, then another 50' to the cabin.
Cost me $2000 to get it to the cabin, plus they made us hire a local electrician. Could not install the service panel or box myself.
They would not come out until the electrian notified them.