I thought National Rail terms and conditions on Saver tickets allowed a
break of journey on the return journey.

How come LUL don't appear to agree that where the saver is to
Underground Zones 1 and 2, issued by One at Cambridge? WAGN staff I
checked with confirmed my recollection of the rules.

They claimed today the ticket only allows one tube journey, though the
barrier staff let me through anyway. The gate code was 51 (Already used
for 1 journey (single) or 2 journeys (return)) at entry and exit when I
resumed my journey.

--
Colin Rosenstiel