Byju's — Fake services

Hi,
I have purchased their byjus tablet program for one year. I took progarm in end of 2019 to dec 2020.
But since i have took their program, they took whole fees from me in order to provide whole facilities m struggling with that every month. First half books they have sent me on jan 2020 n remaining books in aug 2020, in which still one book is pending. My students portal where i get webinar n value edition series, this portal ol the time on its own stop showing me the content, i have to call them regularly to get this done.
This is utterly harrresment for the the thing i paid for.
I have to call seek beg n more shiit n then wait for long periods..
This product i have taken for year and from 6 month i have faced only harrasment, n yet few months to go by, but for one year this is torture they don't deliver what they proclaim.. I want my students portal to be working as i have paid you guys entirely... Plus books which are supposed to deliver... Byjus fake proclaiming company.