Byju's — Not refunding my money

Address: Bengaluru

I have purchased byjus course for 136000 and I have made payment of rs 16000 and the next day instant I cancel this course telling my counceller but he forced me to collect the parcel amd 6 days trial but I didnt collect it, and now from 15 days I am sending mails to cancellation team and calling customer care but they are not responding properly, I want my money back so I am trying to reach them and my counceller is not attending my calls, he is ignoring me, plz help me out and get my Refunded 16000 fastly please.