Some providers don't display stuff like line rental savers - i.e. you need to know about it and ask for it.
I know about it, and have located it in the current EE Broadband and Home Phone Price Guide
(p18) This document is available under www.ee.co.uk/terms
It is however proving impossible to sign up to EE broadband and purchase their line rental saver. There is simply no option when attempting to purchase online (where the competitive broadband promotions are anyway).
Phoned sales several times now as the next step, and asked two managers, who have said in robust terms that Line Rental Saver does not exist and when pointed to their price guide, insist it should not be listed in that document and it will and cannot be offered.
Have contacted Gavin of EE here to see if he can help in the meantime...