Oxford Publication — Not sending a product after collecting payment

Hello, I signed up for the Oxford Handwriting job because I wanted some extra income to invest on my education. They seemed genuine and responded within a minute when I wanted to sign up. They got me into paying 850 rupees for sending the materials. After payment they sent a link (which wasn't genuine) within 48 hours and said I'd get the material within a week. It's been more than 2 months and I haven't received any product. I've been trying to contact the person I made the payment for (I got their number from the website : +[protected] they haven't been responding ever since I confronted them and asked them for a refund. Please help me get a refund, that would really help with my tuition fees. I know that might not be a big sum to some people. I'm only 19 years old and I have a tough time with the money. Every rupee matters. Please help me out. Thank you