CelcomDigi also said that contrary to claims, its customers had been informed of the systems upgrade in advance, adding that customers could still make and receive calls.

“All services have since been recovered. We apologise for the inconvenience caused and appreciate the understanding of all affected,” it said in a statement.

Last night, it was reported that a widespread service disruption affecting CelcomDigi triggered a wave of frustration among users, with many taking to social media to complain about the sudden loss of mobile data, network coverage, and interruptions to daily transactions and communication.

Users reported being unable to access mobile data, send text messages, use navigation apps or complete digital payments.

Some said they were caught off guard while at work, travelling or making digital purchases.

Several netizens said the disruption left them stranded in inconvenient situations, including at petrol stations, restaurants, shopping outlets and public transport hubs after cashless payments and QR transactions could not be completed.

Users were also frustrated as they claimed they did not get any prior notice from the company, with many questioning why maintenance or technical issues were not communicated in advance. Others demanded rebates or compensation.