To exclude an account fromthe overall refresh, please follow these steps:

Go to ‘Settings’ > ‘Refresh Accounts’ > set the interval for the account to ‘Off’

If you refresh your accounts now (pull down in the account list), the account will not be refreshed

If the switch ‘Use for Account Groups’ stays activated, the account will not be refreshed, when you perform a manual refresh of the corresponding account group (swipe to the right over the account group card name > ‘Refresh’). If you deactivate the switch, your account will be refreshed if the account group is refreshed manually.