Online Marketplace Store India [Omsi] / Online Medical Store India — even after 15 days my order status is same and not even processed

I have placed an order in omsi.in and paid the amount online.
I have sent required prescription which they have asked and after that no update from them.
I have tried calling customer service number#91-[protected], No proper response and sometime even they will not lift the call.
So i have whatsapp to cancel my order. No response.
Again i sent whatsapp message to cancel my order and informed them if they are not going to cancel i will complain.
Again i have called them for cancellation, Now they are saying Rs 100 cancel charges and 5% on total amount will be deducted for processing the refund.
WITHOUT providing any service even after the multiple follow up, they are charging me.
This is cheating site, please do not order.
If any such mandatory documents required, please do not allow the customer to place the order without the requirement documents.