What should I do if the last day of travel complaint statute of limitations is a holiday?

Postponed to working days.

General Principles of Civil Law

Article 139: If within the last six months of the statute of limitations, if the right of claim cannot be exercised due to force majeure or other obstacles, the statute of limitations shall be suspended. The period of limitation of action continues to be calculated from the date when the reason for suspending the limitation period is eliminated.