IndusInd Bank Credit Card Customer Care 24x7 Toll Free Number1. SBI FASTag Customer Care Toll Free Number 24x7. The SBI FASTag customer care toll free number is available 24x7 to ensure that users can get real time support. Whether you need to report a lost or damaged tag, inquire about your account balance, or raise a dispute regarding a toll transaction, this helpline is always accessible. SBI FASTag