Byju's — giving burden without my consent for my kids even I am not satisfied

Address:

Balod, Chhattisgarh, 491226

I am amritanjali singh mother of parth singh and rudra singh. I know about the learning app from my mobile when my childrens using its video. It seem good when i go through with the app. They call me tell me about great teaching by using this app. They also tell about the period of consent for 15 days but my childrens examination were going on so didn't take serious because i was waiting for mentor who was going to take classes. The day of first i was unsatisfied with them only due to lake of time and mismanagement. I am requesting them from that time to cancel my agreement but they are not taking serious. They started there emi also without my 15 days consent. I am alone in my home and unable to pay emi because of my husband's illness. I am requesting again and again but nobody is responsible to take care of my request. Please help me and stop my emi's. I am only person of my family so i am unable. Please listen my request.
Even my kids are not using tablet also.