(Reuters) – RBS said its customers were reporting that services were coming back on line after the banks online and debit card payments failed Monday evening. If customers have been left out of pocket as a result of these system problems, we will put this right, said RBS in a statement. Millions of customers across the United Kingdom were unable to withdraw cash, pay for goods or use telephone and online banking services as RBS and its retail banking unit Netwests online systems and debit cards failed on Monday evening. The banks Irish unit, Ulster Bank, also reportedly faced similar technology glitches.