Hi, please refer to the link below to cancel the subscription: http://support.apple.com/en-us/HT202039 (If the link doesn't work, pls go to CS app->Me->Account->Subscriptions or App Store->Account->Subscriptions->click CamScanner-> scroll down to find the Cancel Subscription button) After cancellation, you can click the link below to initiate the refund: https://support.apple.com/en-us/HT204084