5 is I paid $100
3,4 is GCP spent that $100 with 10% GST included
2 is the credit put into my account
1 is what I spent today, and 6 is the 10% GST of 1
The problems of this bill are:
1. the order of the items: neither chronological nor logical... it is completely random!
2. What I need to know is only 5, 1, 6. And 2, 3, 4 is pretty much your internal settlement, and is completely irrelevant to me, and should not be included in my bill... As I don't care how you convert my money into my credit...
3. Fundamentally speaking, putting credits and actual money transactions into one bill is a bad idea...