Don't worry, Mayor! There are some things we can check. First of all, please ensure your friend has never before downloaded Fortune City. If your friend has downloaded the app before, they unfortunately will not be counted towards increasing your popularity. Once you've sent an invite link to a friend, please check to make sure they used the link or QR code to download the app. If you still have questions, please contact us via in-app messenger and also leave your friends' SPARKFUL ID. Thank you so much!