Idea Cellular — Network not showing..it's saying no service

Network not showing up since 3days it's saying no service.i have tried all the possible ways like changing the sim card setttings, searching for network, restarted device and finally even tried to insert the sim into other Device it's only saying idea but no network .. serious this is ridiculous..I tried all the possible ways to make it up and running.. completely disappointed with your worst service and weak signal.i have decided to port to other network provider.