Hi,
I understand it can be challenging to provide old information however, please note that the attachments you've provided are not valid proof of ownership.
That said, it looks like we're still missing some information from you in order to help with this issue.
Please send us a copy of the Kiosk receipt for a transaction on this account.
If you made this payment via an online platform, for example Qiwi Wallet, please
send us a screenshot of that purchase.
Steam Support
Sam