Byju's — Cancellation of plan takes over verbally but not in written format

I had opted for cancellation within the stipulated time. I recieved Byjus products on May 27, 2022 and I raised cancellation on Jun 2, 2022. Many people from Byjus spoked with us regarding this some said we had cancelled the plan but some said you want to take the plan for sure and we will deduct money from your account on EMI date. I want Byjus to cancel the plan and take back all the products from us. It's not fair to be acting being nice and scratching our money with our knowledge even we cancelled the plan