Despite finishing bottom of the table, Espanyol said in a statement the run-in had been "undoubtedly unfair in a sporting sense given the last stage of the league was not competed in the same, equal conditions as before the suspension".
Promotion and relegation between Spain's top two divisions has become a thorny issue after the Segunda match between Fuenlabrada and Deportivo La Coruna on the final day could not go ahead due to several Fuenlabrada players testing positive for coronavirus.
Referencing the problems in the second-tier, Espanyol have made a desperate plea for their relegation to be scrapped, despite the top flight completing last month without mishap.
The Barcelona-based side claim they were unfairly disadvantaged both by empty stadiums, given their remaining fixtures against relegation rivals, and the high number of positive cases suffered by the club during the crisis.