Snapmint — Order not delivered, payment not refunded and being harassed by collections

Address: 298/1 Flat D1 Red House Building, Opp MCD School Ghittorni Farms, Delhi 110030

I placed an order on SSS (StreetStyleStore) and paid via snapmint and amount of INR 999 in the month of April (17th, 2022). I did not receive any delivery for over a month till the time it was my first payment of INR 250 was due. I enquired at both SSS and Snapmint and they said it will be delivered. So, I made the first payment to Snapmint of RS. 250 without receiving the product. Its been 3 months there is no sign of delivery, and the snapmint is harassing me for the balance payment. Every time i spoke to their agents i mentioned that i did not receive the product I need a refund of INR 250. But no one is willing to revert and I have been constantly harassed by the agents through calls and texts. I have written complaints on the website and on the phone but no one seems to be interested. But they are talking about the credit score, the penalties, etc. I need to paid my instalment back an amount of INR 250 which was paid in the month of May 2022