Screen Guards India — not refunding after successful pick up of product

Website:

screenguards.co.in

I bought oneplus 5 case but that was not like they display product in the picture. I asked them for return and one girl called me for this. She took my details on whatsapp asking address from where the product needs to picked-up. So finally person picked-up the product and i finally returned it. Now it's been 3 weeks, no refund no information from them. The girl which use to ask me details is not replying me, when i call her she is disconnecting the call. They are not replying me of my messages, my emails. What the hell they are doing. Seriously i and my friends are never going to order anything from this site. Very very very poor customer satisfaction. They show no responsibility towards customer. Zero customer support.