I have several Santander bank accounts for which I used to have yodelee feeds.
These worked fine.
Since updating to the new direct feed system, card payments have been allocated to the wrong accounts including a closed loan account, so I am having to go through and manually delete and correct all new transactions.
There seems to be no way to alter the settings on these feeds.
What can I do?
That sounds like you may have linked the wrong bank to the wrong feed. The way to sort this would be to remove the feeds from the bank accounts and then re-add them one by one to make sure you are matching them up correctly?