Byju's — I want to cancel my subscription but nobody listen

Address:

BYJU'S 6th Floor, Tower D, IBC Knowledge Park, 4/1, Bannerghatta Main Road, Bhavani Nagar, Suddagunte Palta, Bengaluru, Karnataka, Bangalore, Karnataka, 560029

First of all A counsellor name anubhav rawat came at my home for conselling
Then he started convincing to take subscription of a year for class 7th and he said during that time i[censored] have any problem to study after taking subscription I m here to take a guarantee to take it back and cancelled ur subscription at any time
But now when we are not satisfied with this subscription and my baby don't want to study by that tablet they are not attending the call and also now they are starterd abusing during call period nd they are now forcing us to take subscription and they are saying that it's more than 15 days it's too late
While I have all the screenshot of msg whatever I send to MR ANUBHAV RAWAT to cancelled that subscription and also have a call recording in which he said clearly it's just 3 days u have to take more time then I will cancel it but now he is also saying that I don't commit anything.
I have all the screenshots and all the call recording what they said on call or which kind of way of talking they use...
And also they are sending msg to cut the first EMI of ₹1568 approx after taking 2100 for registeration
And they are forcing to pay EMI while we don't want to continue the subscription.
We are very depressed by these and also my father's has lots of tension because of these EMI msgs.
Kindly help us and please take any action against these BYJU'S Company.
Thank you.