Emirates NBD said it has restored digital banking services after a system upgrade at the weekend disrupted the Dubai-based bank's online and mobile services. The bank cited “teething issues” after launching a system upgrade to its core banking platform in the early hours of August 7, leaving customers unable to access their digital accounts for three days. “I would like to update that our teams have resolved issues and restored digital banking services across all channels," Abdulla Qassem, Emirates NBD's group chief operating officer, said. "We are closely monitoring the situation and continue to improve service performance as more customers access our digital banking platforms. We sincerely apologise for the inconvenience caused to our valued customers due to the service interruption and remain committed to addressing their concerns." Despite the glitch, customers were able to use their debit and credit cards at retail outlets, for online purchases and to withdraw money at ATMs. Earlier this week, several customers expressed their frustration on social media, saying they were unable to make credit card payments, pay for utility and telecom bills, transfer money to cover rent cheques or make remittances as a result of the disruption.