I Have Been Waiting Over 3 Months for Airbag Repair at Citroën Service Center

On February 12th, I took my car to the Citroën service center due to a deployed left front airbag and damage to the left rear door. While the door was repaired within two weeks, the airbag part was not available, and I have been waiting ever since—now over three months. Although the part finally arrived last week, the service center still says the repair cannot be completed and offers no solution beyond asking me to continue waiting. I have been without my car for three months, and there is still no clear answer on when or even if the repair will be done. My issue remains completely unresolved.