Rented 1 bed flat. They confirmed new monthly, changed to smart meter in November 2020, without approval put in pre-pay meter which previously I had stipulated on no account install this. They wrongly wired it, consequently, the 2 storage radiators do not work when cheap rate kicks in on economy7. Many many hours of phone calls, many emails, they refuse to fix it. Current tenants have experienced the 2nd beast of the east, worst cold weather in 10 years, just with a portable £20 oil fired radiator. Spark told my tenants that the previous tenant did not tell them they had storage radiators, lies , despite the meter changer telling me that Economy7 now has 2 off peak periods which will make running the storage radiators cheaper and more efficient. SSE advised on 15th October 2020 would take over billing for Spark. They refuse to answer any emails. I employed an Electrical Engineer who made a report which I forwarded to SSE & Spark, no answer, he moved 1 wire but the provider has to move a neutral wire for it to work, he estimates 1/2 hour job. Disgraceful, their licences should be revoked, liars.