The firm attributed the development to a system glitch.
This was disclosed in a tweet via the company’s X handle on Thursday.
The Nigerian Electricity Regulatory Commission, on Wednesday, approved an increase in electricity tariff for customers under the Band A classification who enjoy 20 hours of daily electricity supply.
The commission’s Vice Chairman, Musliu Oseni, said the increase will see the customers paying N225 kilowatt per hour from the current N66.
In its apology message, the AEDC noted that some Band A customers were wrongfully charged while recharging their meters, while former Band A customers who had been downgraded to Band B were charged the new tariff of N225 per Kilowatt Hour.
The tweet titled, ‘Public notice,’ read, “This is to inform customers across the Abuja Electricity Distribution Plc franchise that we are aware of the wrong charges faced by some Band A customers who tried to recharge their meters following the new tariff regime.
“This was due to a system glitch caused by the reclassification of some Band A customers who have now been downgraded to Band B due to the number of hours of electricity supply enjoyed over the past few weeks.
“These erstwhile Band A customers who vended were charged the new tariff of N225 per Kilowatt Hour. Our team is working to identify the customers affected, and all excess charges will be refunded.
“The situation also saw some Band A customers who are now charged N225 vend at the old rate. Once the glitch is resolved, this category of customers will now recharge their meters at the new rate of N225, which will ensure they enjoy a minimum supply of 20 hours daily.”
“We apologise for any inconvenience caused to our customers during this change. We remain committed to improving power supply to all categories of customers, and we crave your understanding and support as we do this,” the statement read.