// Unlock his account (but only when it is on UNCONFIRMED!)
$result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_user_data SET status='CONFIRMED', ref_payout='%s' WHERE user_hash='%s' AND status='UNCONFIRMED' LIMIT 1",
// Unlock his account (but only when it is on UNCONFIRMED!)
$result = SQL_QUERY_ESC("UPDATE "._MYSQL_PREFIX."_user_data SET status='CONFIRMED', ref_payout='%s' WHERE user_hash='%s' AND status='UNCONFIRMED' LIMIT 1",