I wonder if this varies by supplier? I don’t doubt your comments at all but I have a customer/friend who is on pre pay / smart meter and the electricity very definitely did just turn off. I’ve been there when it happened.Having been in metering for 11years, energy suppliers just cannot cut supply.
If money is owed they have a duty to keep the customer on supply with a pre payment meter, and debt can be put on the meter with a recovery charge which will be discussed depending how much debt has been accrued, and what the customer can afford at no interest at all.
Equally with repeat offenders by passing meters to obtain free electricity, the above process is normally applied, the revenue protection teams are even told not to go out and look for by passes as they used to.
The only time I have seen full disconnection ie cable ditched in street is on cannabis farms by order of the DNO.
Energy suppliers dont like the publicity on these matters. They offset their tariff prices to cover such events ie the honest consumer always ends up paying.
He then logged onto the portal on his phone - slung then some cash and it came back on again. Opened my eyes a bit!
In some ways this is not dissimilar to the key card meters where it turns off when get to zero. But you could obtain £5 emergency credit on those.
I don’t know the score regarding his standing with the energy company, but know he struggles to make ends meet sometimes so he could have been in debt with them.