Byju's — Cheating in the name of scholarship

Last year my sister had availed a scholarship from Byjus. We had taken 12 months EMI option for payment and they said if she scores more than 80% in her school which she did, we don't have to pay last 6 EMIs. They backed off later on that there's no such policy. After so much chasing around they agreed that 4 EMIs will be waived off. But still 1 more EMI was debited from my account which after complaining they refunded. We thought there this was due to some miscommunication on the part of one of the executives and hence a rare chance so we won't face any such issue again. And after all of this happening, we still agreed for enrollment this year because we like the teaching method. Now this time they convinced us that we'll have to pay Rs.28000 and we'll get 3 years of live classes. And we paid the initial amount of Rs.5000 and completed all the procedure for loan of the remaining amount. We kept asking for almost a week when will classes start and then they tell us that we'll get only 2 years of classes. We asked for refund then again delaying for 3 more days. Saying that we'll initiate the refund on Wednesday, again on Thursday I ask about the refund and I'm asked to write an email to the cancelation department that too I was given the wrong email ID. Like I seriously don't get what kind of service these people provide. Totally broke my trust.