FASTag in the FAQ section. Learn more about FASTag registration, recharge, usage, and benefits. Login to ICICI Bank’s Internet Banking to access a wide range of banking services and features from the comfort of your home. Enjoy secure transactions and manage your finances anytime, 24x7. Find here the ICICI Bank FASTag helpline number details online. Sort your queries related to FASTag by getting all the relevant answers to your Complaint. Read more for details! FASTag KYC: Update your Small KYC to Full KYC with ICICI Bank online or offline and enjoy seamless toll transactions with higher wallet limits.