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24-hour customer service hotline: 2512 3123; 24-Hour Overseas Emergency Hotline: +852 3477 4089 (Only for csl mobile number call the Overseas Emergency Hotline, the roaming charges are waived)
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csl online shop; My HKT; My Account; Connection/Renewal;...
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24-hour customer service hotline: 2512 3123; 24-Hour...
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Calling to Hong Kong while traveling overseas ‘’+’’ or ‘’001’’ + “852” + tel no. Calling to destinations other than Hong Kong while traveling overseas ‘’+’’ or ‘’001’’ + country code + area code + tel no. If you have any question, please call csl customer service hotline 25123123 for assistance.
1O1O is dedicated to providing you with support, whether you are in Hong Kong or overseas. Our customers can contact us on the following numbers: Customer Service Hotlines. General Customer Service Hotline: 2888 1010. International toll-free hotline: + 800 2888 1010. China toll-free hotline: 400 120 1010.
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24-hour customer service hotline: 2512 3123; 24-Hour Overseas Emergency Hotline: +852 3477 4089 (Only for csl mobile number call the Overseas Emergency Hotline, the roaming charges are waived)