Byju's — Change learning program

I purchased the educational programme on 20 sep 2022 . My child attend one week class but he was not comfortable that class so I decided to cancel immediately I informed my councellor as he already told me you have not comfortable this class please inform me I will cancell don't worry . So I trust him and informed but he not ready to do any procedure and told me to you attend next one week class you have time to cancel. Lastly after 15 days he gave a email id to cancel [protected]@byju's.com . I send email immediately but they replied your time is over not possible to cancel.Then They gave another option you can choose tablet learning program and cancel Byju's think and learning program online class. Finally I agree that and they said your Total loan amount is 40000 so your emi will be change 2200 something. Ok I waiting till this date they didn't clear my emi .I called customer care number and try to contact responsible person they didn't call back .My emi date is 5 November so I wanted to clear this quickly.please help anyone