Rangers said they will table their case before the Court of Arbitration for Sports (CAS).
“We’re going to appeal this decision at CAS,” disclosed Enugu FA Chairman Chidi Ofor Okenwa.
“This is miscarriage of justice. There is no way we are going to rest until we are justifiably heard.”
“Rangers will fight till we get justice. We are being victimised and CAS remains our only hope for justice,” added Rangers general manager Paul Chibuzor Ozor.
The Confederation of African Football (CAF) said Rangers appeal was not admitted on technical grounds.
CAF disqualified the Nigerian club from the second-tier Confederation Cup on the basis that they fielded an ineligible player, goalkeeper Daniel Emmanuel, in their final qualifier against CS Sfaxien of Tunisia.
As a result of this ruling, Sfaxien replaced the Nigerian club in the mini-league stage of the Confederation Cup.
They have since played their first game in the series against fellow Tunisian club Etoile du Sahel.
Mali’s Stade Malien and Saint George of Ethiopia are in the same group stage of the club competition.