That you saved or currently online available on iphone site? Can you. Bcz I try apple store they allow only 90 days history.
To buy something you have to have a credit card or debit card. So you will have bank statements that say your purchases. Not sure about where you live but here banks have to keep records for minimum 10yrs. So if your country is like here then just go get a bank statement from then and tell ata the dates
Then tell me why my purchase history not showing. It said only 90days history. If you need I will send you that video of my purchase history.