Eddie, as customers pay for the supply why on earth would the suppliers turn the supply off and lose money? In any case, except in the case of dire emergency the suppliers have to give notice of loss of supply.
Imagine the uproar if customers were cut off mid shower, or halfway through cooking a meal or just before Corrie.
Never in a million years. All that means is that if they have a court order to disconnect the supply for non-payment they don't have to force entry to do it.