⚠ NOTE: Non-refundable & Processing time will be 5-15 minutes or 1-24 hours. How to Top Up Bitdefender Total Security? 1. Select the nominal package you want. 2. Place the order. 3. Complete the payment. 4. You'll receive the redeem code in your signed-in email. How to install/activate the product? For Windows/Mac: 1. Open a web browser, go to central.bitdefender.com, and log in to your Bitdefender Central account, or create a new account if you don't already have one. 2. Navigate to My Subscriptions, click on Activation Code, enter the provided activation key, and activate your subscription. 3. Go to My Devices, click PROTECT THIS DEVICE, run the downloaded installer (Run as administrator on Windows or open the .pkg file on macOS), and follow the on-screen instructions to complete installation and link your device to your account. For Android/IOS: 1. Search for Bitdefender Mobile Security & Antivirus on the Google Play Store or Apple App Store and install the application on your device. 2. Open the app and sign in by linking your device to an existing Bitdefender Central account or a Google account. 3. If you don't have an account, register directly in the app by tapping Create a new Central account and completing the signup process. 4. Check the displayed subscription status and, if you have an activation code, tap I HAVE A CODE and enter the provided activation key. 5. Once the activation is complete, Bitdefender Mobile Security will be fully set up and ready to use.