"EPCs became compulsory for all dwellings being sold or rented or as from 02/01/2009...
...If you are buying or renting a property now, you are entitled to be provided with an EPC by the seller/landlord or his/her agent for the building in question."
Source: Building Regulation Office, the Ministry for Transport and Infrastructure
This is extremely important information. PLEASE SHARE SHARE SHARE.
Your landlord should have provided you with an energy performance certificate for your rental property. This has been compulsory since the 2nd January, 2009.
If he or she hasn't done so, then they are breaking the law.