Bank statements which have been imported in error can be deleted.  

NOTE:  If any transactions from the statement have been processed, you must un-reconcile & reverse them first:

To delete a bank statement

• Select Trust Accounts on the green menu
• Click Bank Statements at the bottom of the page or the blue bank statements tile

• Click View

• Select Unreconcile & then select Unrerconcile & Reverse on the next screen

Click Delete Statement

• confirm you want to delete the statement