[Resolved]  Byju's — wrong product

I have taken this tab enrolling for 5th std. And they also gave us 4th grade sd which does not load the videos. I have complained end no of times no use. They are just pushing the time to complete the year, very smart. More over it not safe for kids the guy mentor calls at 10 pm to talk to the child do u think its safe.
Its just rubbish app. You people better refund my money. I have all the proof since which the app in not working.