In order to pull a report on BACS payments, please follow the below steps:
Click Reports, Payments report on the left hand side.
Click Download for anything 1000 and under, or click Email for anything over 1000.
Once you have the CSV file go to column I entitled Payment type.
Add a filter on the Payment type and select BACS payments.
Once you can view all your BACS payments, use the data as desired.