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One Stop Engagement Centre (OSEC) – 1 300 88 5454

Tenaga Nasional Berhad (TNB) has established a One Stop Engagement Centre (OSEC), offering a single point of contact to respond to customer enquiries and feedback on TNB billing and account related matters.

Simply call or fax 1 300 88 5454 * 

* If our line is busy, kindly press '1' to leave your telephone number or press '2' to leave a voice message. Our Customer Service Assistant will return your call as soon as possible

Alternatively, you may submit your feedback online or email us at tnbcareline@tnb.com.my

osecOperation Hours:

7.00 a.m to 11.00 p.m (including weekends & public holidays)

Charges:

  1. Fixed line calls will be charged as local calls
  2. Cell phone calls are subject to charges by service providers

 

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7.00 a.m to 11.00 p.m (including weekends & public holidays)

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