Askiitians — refund for the cancellation - jee main

Hi, my daughter who is studying class 11 joined JEE-Main online coaching during last week of July'2019. Before joining the course, askiitians team informed that, online coaching class will support 90% for the CBSE school syllabus. During admission, none informed us for the refund policy. Based on that we choose Askiitians and we asked to pay for 2 years fees. After 3 months of the coaching, my daughter feels that, askiitians coachings are not meeting the CBSE syllabus and she could not get the minimum marks both in school and askiitians tests. Due to that, we contacted askiitians for the cancellation and refund. They sent the refund policy which is possible the refunds within 15 days from the date of joining. Within 15 days, how it is possible to judge the coarse and coaching. Now, nobody responding for our call. Atleast they have to refund one year fees. I don't know how to get the refund from askiitians. Kindly advice to get the refund.