Airbag replacement

Tuesday 2018 on the 16th I send my car for the Airbag replacement the Technicians didn't put back everything back as they have found some parts a loose on the passenger sit I am not happy because I was called that my car was ready I fetched before knock off time I get paid hourly I had o clock out early when I got there I waited long, today I have been calling them no one is picking my calls