Sometimes the Bank/Credit Card Account may not save after you select the account from the dropdown.
If this happens, it is likely because the Xero account you selected has an empty CODE field.
In Xero, please go to your Chart of Accounts and select edit for the respective account. Enter any CODE (e.g., 200, sales).
Once you set the CODE field, head back over to taxomate and select your account.
If you need any assistance please let us know.