Celcom customers can pay their cell phone bills online in a number of different ways, as of 2015. The most efficient way is through Celcom's online customer service website. Users must have a savings account or a locally issued credit card to use this service. Payments process within 24 hours.
Customers can also pay directly through Internet banks, such as UOB, Pos Malaysia, and Public Bank Online. Transactions take between 15 minutes and three working days. Another alternative is using Celcom AirCash. Customers with Celcom AirCash can pay their bills directly from their mobile phones. In order to use AirCash, customers need to add money to their account online or through Celcom branches and payment kiosks.