State-owned power utility Eskom is once again urging all prepaid electricity customers to update their meters immediately to avoid an unexpected loss of electricity after the deadline of November 24. It is critical that all customers, including those who have not bought electricity in the past six months or more, to buy electricity tokens from authorised vendors by November 24 to prevent the meter from becoming inoperable, losing power and incurring replacement costs, says Eskom Distribution group executive Monde Bala.