I think it's their website down a few minutes ago, you are rigth they show same price

Journey summary
Outward Journey (14 Oct 2015) Depart Arrive Travel by Train company Duration
13:14
Heathrow Underground

14:30
London Liverpool Street
Tube [Some legs of this journey are via tube] n/a

01h 16
14:30
London Liverpool Street

16:27
Norwich
Train ABELLIO GREATER ANGLIA

01h 57
Calling Points

Posted By: XXL16, Sep 29, 10:51:42