The ECG in a statement copied to the Ghana News Agency said as part of the Standard Transfer Specifications (STS) protocol, it had become urgent to upgrade all STS metering systems, including the NURI Prepayment system.

"Please buy enough top-up credit that will last for at least one month in order not to experience vending disruptions that might arise out of the on-going Nuri meter upgrading exercise," it stated.

"For your convenience and the immediate upgrade of your NURI Prepayment meters, please call our call centre on 0302 611611 or contact us via our social media platforms (ECGghOfficial) for our expedited action."

It noted that this was a crucially mandatory STS upgrade designed to ensure uninterrupted vending service.