Statements for customers with a credit

I just tried to get a statement for a customer that has a credit on their account. First the statement button was / is gone from the customer info page. I had to get the url from another customer and change the ID number. Then It shows the credit as an owes. I assume it’s because the form was not created to handle this but it should. I want to be able to show my customer where he is at but this is no help. Please make statements work correctly for credits and put the button back so we can get a statement that shows zero balance. Sometimes people want to see that.