Be10x — Regarding refund of amount 7k

I attended workshop at be10x I also purchased their master program for first half amount then later I realized this program is not much worth for this amount
So I asked refund from them, they didn't respond properly..I'm interested in taking up their course now why they didn't refund my amount instead they asking more to pay 🤔 So kindly help me to get my amount of Rs 7k nearly