12.1. A railway undertaking or international grouping shall have a right of appeal to the Intergovernmental Commission if it believes that it has been unfairly treated, discriminated against or is in any other way aggrieved, and in particular against decisions adopted by the Concessionaires or, where appropriate, the railway undertaking, concerning:
(a)the network statement;
(b)the criteria contained within it;
(c)the allocation process and its result;
(d)the charging scheme;
(e)the level or structure of infrastructure fees which it is, or may be, required to pay; and
(f)arrangements for access to the network.