First of all I understand that the situation described below may be extremely rare, so if it is difficult to fix the issue I would not insist.

Situation: search of fares DEL-MOW. The case in point is DEL-MOW/YY/YIF.

Problem: fare rules (TVN) and routing rules are incorrectly shown for the cheaper fare.

Possible reasons for an error:

a) there are two different YY/YIF fares with different global indicators (FE and EH), different prices and difference mileage allowance (MPM)
b) KVS is not able to specify the GI in the request and obtains something with default settings

Unexplained: the eligibility rules (TVN method) mention some strange restrictions which do not seem to relate to both fares at all (Greek seaman/ government orders).

Possible solution: possibility to specify GI (with "default" settings by default to avoid questions from newcomers, EH, AT etc) would possibly solve the problem.