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Mobile phone number:
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 to be about “refusal of payment/auto payment”. We wish to assure you csl has absolutely nothing to do with these bogus emails. Please note we only use the following email address when issuing billing notices: eBillmobile@hkcsl.com.
What’s more, 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.
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