Just want to ask what is happening to the books that I already paid to all of the chapters and just want to reread but it says that I need to pay again.. 
Can't Reread
- Edited
Jovil Paid all chapter? Most people who faced this problem got those chapter trough daily unlock for free and locked now.
Webnovel just added new policy which locked all premium novel with paywall and adwall. Try to check your spirit stone bill if you saw a chapter that you have paid but becoming locked now.
Qidian is taking those long as novels and decided to ad-wall everything past the 100ish chapter.