Flat residents are facing energy bill rises of as much as 700% because of small print in their terms that prevent them from choosing their gas supplier and deals that aren't covered by the energy price cap.
Ofgem’s energy price cap will rise by a staggering 54% in April, but an estimated 800,000 homeowners and tenants are not covered by it because they are on communal networks that heat large buildings.
These tariffs are negotiated for all residents collectively by freeholders and managing agents.
