Not available to prepaid card users.
If you use a prepaid card,
please login here.
Advice to customers on phishing emails
Some csl customers have received phishing emails claiming new bills have been issued. Please note csl has absolutely nothing to do with these bogus emails. We only use the following email addresses when issuing billing notices: eBillmobile@hkcsl.com
We NEVER request personal customer and/or credit card information by email or via a hyperlink to a website. For inquiries, please call our service hotline on 2512 3123.
Special notice: csl eSIM (included smart watch) system upgrade is scheduled from March 6, 2021 19:00 pm to March 9, 2021 23:00 pm. csl eSIM service in terms of purchasing and SIM card activating will be temporarily suspended during this period. Please call 25123123 for inquiries. We apologize for any inconvenience.