You pressed the wrong one you need to press the "reading now" button in order to receive updates
Press now reading
It doesnt matter, you get notifications if its now reading or already read. The thing is you dont get notifications for each chapter when it gets uploaded but at a certaion time (depends on your timezone) you get one notification with everything thats uploaded that you are following
Contact the admins (e-mail: [email protected]). I don't really know, but I think you can also report the problem
I'm a bit confused, if I have already press "already read" bottom and give it rank. Why, have my notification have not notified me when there was a new chapter? (︶︿︶)