Quarterly / Semiannual Live Room: Intraday unlocked for 3 / 6 months from the purchase date. Renew on Eduzz and access continues (early renewal adds to the current period).
OIS Course: 2 months of Snapshot free, one-time use. Activate whenever you want, within 6 months of the purchase.
To prove the purchase, use the sale ID (on the Eduzz receipt/email) and the email used for the purchase. Access follows Eduzz: a refund, cancellation, or overdue installment blocks access.