Byjus — Cancellation of my product

As per above subject i brought byjus product on 13/02/2022 after that i was cancel the same sent mail to cancellation @byjus.com and called help line also and contacted to marketing officer with whatsup told the canceltion of the product but they are not cancel now i got massage today that my EMI will start on 5th of next month by Birla finance i have mail copy with me and whatsup also i have today also tried to contact teme but no response our student name :saanvi datanal byjus registration number [protected]