Already setup eBill for our Citi Costco and need to setup for Citi +Rewards. Click new eBill select Citi (also tried Citi Cards) screen 'Connect to Citi Cards' then shows in left panel select a saved login with one entry on a radio dial called 'Citi Cards' on the right panel it shows Costco that is with the saved login.
The logins between the two accounts are different but I cannot get Quicken to stop remembering the Costco saved login so I can do a new instance with the difference login.