Byjus — I want to cancel my byjus subscription and refund as soon as possible

Sir i took a subscription from byjus 12 January 2022.i want to cancel my byjus course as soon as possible.i was going loan process .i want to cancel the loan process and refund immediately.i have already told about this to support byjus .they told me cancellation will not possible because 15 days over.i want to help immediate.please help me.my mobile number is [protected].optional mobile no : [protected].i have told for cancellation date :26/3/2022