An easier way to add money to your account [fully launched]

I found a pretty serious bug with this which made me go overdrawn on my Nationwide account: Transfers within limits are transferring from wrong external account so I’d like to revoke the limits but I still can’t find how to do this? I go to the card, press the three dots, but I only get Refresh/Share/Remove options. The Details link gives me a ‘Manage account’ but no Limits section.