Byjus — Return and refund

Website: byjus.com

I ordered a byjus product for 15 day trial. I wanted to cancel the order and sent mail regarding it within 10 days .
I also received a call that my account was cancelled. My wards classes should have begun from june . As my account was cancelled, my emi was not deducted on 6 june as specified. I was not able return the product as there was no further response from byjus and I have still not got the refund of rs.5000 .
Tody (june 27) I got a message from byjus that emi will be deducted on 6 July . My ward never attended any classes. In case emi gets deducted I will take legal actions . I need proper response from byjus team within end of June .