Are You Registered As A Customer ?If You Are Already Registered As A Customer, You Have To Create A New Account For Start Selling And Listing. You Need To Logout Your Existing Account And Register Again As An Vendor With Different Username And Email. If You Dont Have A Another Email For Do That, Please Feel Free To Contact Us On Help Center > Submit A Ticket With Existing Account . Our Team Will Transfer Your Customer Account To Vendor(Seller) Account.