Steps on how to find your transaction details on PS4:

1. Go to Setting > PlayStation Network / Account Management > Account Information > Wallet > Transaction history

2. Click the transaction that you wish to see.

3. Take a screenshot of transaction details page and attach this to your ticket.

Please also check on this link if you need to know more about this:

https://www.playstation.com/en-za/get-help/help-library/store---transactions/payments---refunds/how-to-check-playstation-store-transactions/