You need to speak to your provider and ask them to put you on a pay monthly tariff.
Other than that you need to apply energy savings tips.
Heat only the room that you use. Get thick curtains. In tenements cover any vents on the wall if cold air is coming in. Uncover them as the weather improves.
Use draught excluders.
You can also ask the landlord what he / she can do. If you don't ask then you don't get.
Windows are the biggest source of heat loss in tenements as they are often large and single glazed.
Take a look here:
[Keeping your tenement flat warm](https://www.homeenergyscotland.org/top-five-ways-to-make-your-tenement-more-efficient/) |