WOOE Company — I was buy rs 799 test series and I didn't get cash back

I was buy rs 799 test series from wooe.in because they offer me 100% cashback.
They didn't give me cashback in my account. I am very poor. This 799 rs is very much important for me. I am preparing for gate from home. I want my money back.
Please don't go for wooe test series it was fake. They give you netflix subscription which is very useless. It was not useful for gate preparation.