moving and switching gas / electric

You should be able to move into a house & let your supplier know the meter readings for gas & electric on day of arrival and they should just be able to take over the house and keep billing you. Why I have to create an account with any previous supplier is ridiculous whom I don’t want to deal with and then to have said previous supplier start to block transfers due to previous tenants possibly owing them is utter madness. EDF I am not paying you a dime more.