Royal Bank of Scotland Group PLC (LON:RBS), Natwest and Ulster Bank have resolved the problems that prevented customers from being able to access their accounts via online banking and mobile apps.
Customers of the three banks had complained about being locked out of their accounts for about five hours from 5am.
Many customers had taken to social media to voice their frustrations.
Can't get into RBS online banking to pay some hefty bills. Anyone else not able to access their accounts by mobile app this morning. It’s blaming my internet connection even though I can browse the web no bother.
— Dorothy Brown (@Brackens1) 21 September 2018
@NatWest_Help hi, it appears all Internet banking is down so I am unable to access my account to transfer monies but I still am receiving warnings via text regarding charges if I don't transfer by 15:00,will this be rectified soon?
— Paul Warman (@womsy1) 21 September 2018
@UlsterBank_Help With the technical problems Ulster Bank are having will this affect direct debits being taken from my account today? As I can't access my app I can't see if my DD has been paid or not
— Martell Shields (@martellshields) 21 September 2018
A spokesman for RBS said: "We would like to apologise to customers who experienced issues this morning."
"The issue has now been resolved and no customer will be left out of pocket as a result of this."
The news follows online banking issues at a number of rivals this year, including Barclays PLC (LON:BARC) and TSB.
On Thursday, Barclays customers were unable to access their accounts online for several hours after the bank suffered a technical glitch.
Earlier this year, TSB customers were unable to use online banking for weeks following the lender’s transition to a new banking platform. The IT crash led to the eventual resignation of chief executive Paul Pester.
READ: TSB boss Paul Pester finally steps down in wake of IT ‘upgrade’ fiasco
Customers of online challenger bank Cashplus this week also reported problems with accessing their accounts, making cash withdrawals and receiving or making payments.
Hannah Maundrell, editor of money.co.uk said: "Banks really need to pull their socks up because this keeps happening. It's really not good enough when so many customers are being encouraged to bank online."