Understand the Easypaisa 512 Error Path
Error 512 appears when your Easypaisa wallet cannot complete a transaction handshake with the payment gateway during the deposit flow on ab998. It is almost always triggered by one of three causes: the mobile number on your Easypaisa account does not match the number registered on your ab998 account, the wallet has not passed its own KYC verification at level 1 or
above, or the session timed out before the PIN was confirmed. Fixing the mismatch between your Easypaisa mobile number and your ab998 registered number resolves this in most cases. Check both before retrying.