Mahindra And Mahindra — MCE service app doesn't open at all

I serviced my xuv 500 at audugodi bangalore service centre. They sold me an on road assistant package for 3000. But from that time the app for the service is not opening...I informed the person who sold me ...but he said it will take time to open...app is Mahindra Rise...I kept my phone separate for 1 full day just to open this app...it didn't...so please return my money back or else make sure the app iopens for service...Don't cheat customers...I will never ever do the service in mahindra service station.