Hi there guys, I just test the invite feature, it works. So perhaps there is something wrong with the progress about your invitee and you did.
Please check as follows:
1. you can create the invite link in the page: https://www.webnovel.com/invite, and copy the link created and share to your friends or any people you want to invite
2. The people you invite should follow the link's instruction, and sign in with the third party account to complete to invite progress. He/She shouldn't break the progress and sign in from other place, if so, no bonus will give you.
3. And if you want to know the invite result, you can go to the page: https://www.webnovel.com/level, and check the mission "Invite x friends", it will tell you how many friends you have invited.
4. If you and you friends complete the invite progress, the bonus will be in the inbox, you can obtain the SS by manually.
Any question, feel free to ask me. Thanks.