Super Off-Peak Day fares Cambridge-Waterbeach/Ely - discrepancy

[Oscar]

As far as I can see there seems to be two different prices offered for the same Super Off-Peak Day Singles/Returns between Cambridge and Waterbeach or Ely. For example, full price Super Off-Peak Day Returns between Cambridge and Waterbeach / Ely (in either direction) are available for £1.60 / £2.70 from Trainline or WebTIS booking engines or Greater Anglia ticket machines or ticket offices. However, www.brfares.com shows these prices as £1.80 / £3.00 and FCC ticket machines also sell at these prices. Is there a reason for such a discrepancy?

 

[Edvid]

Normally the higher fares apply, but they've been reduced by an extra ~10% until 5 January 2014 (the ticket machines should have been updated to reflect this).

 

[Oscar]

Thank you - the price I saw on the FCC ticket machines was before this discount came into force.