[Resolved]  Naaptol Online Shopping — I'm complaining about a defective product

I ordered a hand sensor helicopter with order no 73642925.
The sensor is not working properly.
Also in the product box the MRP is hidden by using black marker.
But in the bright light MRP is visible and that is 188 .
The MRP of product is 188 showing on box.
And they sell the product at MRP 599.
This is cheating.
Now I want to return the product.
And want my cash back.
But they are not at all responding when I tried to contact them.
One team is forwarding to other and then other.
They are neither listening nor resolving my problem.
They generated a voucher worth rupees 599 .
But I mentioned them and request them clearly I pay 599 in cash.
So I want my money not some voucher.
Because now I don't have any trust in Naaptol .
So I don't want any product of naaptol.
I want my money back just like I give.
Hope this matter resolve soon.