Custom Report for Customer (Sales Amount and Receipts)

[moagul]

The built-in customer transaction report does most of what I require, however, it doesn’t show the names of the bank accounts in which I have received the receipts. Since the built-in one cannot be customised, I tried making one of my own but this is what I got. The problem is that for each debit it also shows the credit and even after selecting the sales invoice and then total in base currency I can’t see the amount. I know I’m doing some basic mistakes but I need your support. Thanks.