Myntra.com — Convenience Fee charges

I just spoke to the supervisor at myntra about the convenience levied on my account, the quality of the products is so low that the customer is bound to return them, The supervisor and the executive have just attitude filled about Myntra!!!
Myntra is a BRAnd... its a platform where sellers sell their [products.
The charges are so uncalled for and NO prior notifications or no updates on mail to such charges, DO Quality on the products that you are adding, Do less Photoshop and STOP Adding FAKE reviews!!!
The customer return will come down, you will not have to fleece the customer by charging convenience fees and all stuff!!
I want that you return my cash... and I no longer want to do any transaction on Myntra!!