Amazon Seller Central experience worker

Looking for someone who has experience with seller central and with all related Amazon tasks for a Amazon private label business.

Please answer the following when responding to this offer.


1: How do you open Amazon cases
2: How do you Calculate cost of an item
3: how do you list a new item.
4: How soon do you need to answer to customer emails.
5:How do you get off a hijacker from a listing
6:What information do you need in order to create FBA shipment



Perfect English writing skills is required