'your-client-secret', 'client-id' => 'your-client-id', 'refresh-token' => 'refresh-token-123456', 'storage' => new FileTokenStorage(__DIR__ . '/token.json') ])); // Which subscription do you want to unsubscribe/cancel? // it also automatically refreshes token if needed $unsubscribe = $bazaar->unsubscribe('com.example.app', 'subscription-id (sku)', 'purchase-token'); if ($unsubscribe->successful()) { echo "The subscription has been successfully cancelled!"; } else { echo $unsubscribe->errorDescription(); }