Its CEO, Amir Hamzah Azizan, said its customers were informed through the relevant platforms and the system was now fully restored and its operations running smoothly.

“I admit there was human error because at the time, the system was not functioning and some data was not included.

“We are fully focused on addressing this issue and will ensure that complaints (with respect to high bills) are being investigated and we will refund excess payments,” he told a press conference about the sharp increase in bills at the TNB Headquarters in Bangsar here today.

Many consumers had complained through social media that their electricity bill had increased and they felt cheated, more so since TNB did not come forward with any answer.

Amir said in order to address the issue of high bills, it had set up a special task force, led by TNB retail chief Megat Jalaluddin Megat Hassan, to monitor and review all reports or complaints received.

Meanwhile, he said TNB had received 14,469 complaints regarding the increase in electricity bills in April and May this year.

Of that number, 11,331 were resolved while the remaining 3,318 are still being investigated.

Amir also urged customers who experienced issues with their bills to immediately visit any Kedai Tenaga.