LT Online Store — Refund Request for Product not delivered

Website:

www.ltonlinestore.com

We have ordered a logitech webcam on 4th June 2020 but we have not received the product till now.
We made full payment of Rs 1577 with extra charges for fast delivery through credit card. Even we tried to contact them on the numbers provided on their website but we did not get any response.
On the other hand, we had dropped an email on their
email id: [protected]@Ltonlinestore.in
but we get only auto generated email.
Now, we need refund of the total amount paid for Rs 1, 577.
Request you to kindly help us to get the refund back to our account as soon as possible.