You can Dial Airtel' s toll-free number 198 for complaints or service requests like Provisioning, Billing & Metering issues, Allocation of Tariff plans, Account Updation, ISD, STD, and Roaming Activation, VAS Deactivation, Service Termination, and Security deposit Refund. Find the toll-free numbers for Airtel prepaid, postpaid, broadband, DTH and payments bank services. Learn how to file a complaint or an appeal with the Appellate Authority or the Grievance Officer. Contact Us 24"7 Customer Support - 9810012345 Note: For existing customers, please dial from your registered mobile number and keep your Landline number or Airtel Relationship number ready to help us serve you better. Airtel Complaint Airtel , one of India’s leading telecom service providers, serves millions of customers with services ranging from mobile networks to broadband and fiber connections. Despite its expansive reach and technological advancements, customers occasionally face challenges such as connectivity issues, billing discrepancies, or poor customer service.