If you need to contact a seller before or after purchase, there are three ways to do so:
1) Send them a Chat message through the Marketplace messenger. This is available on the seller’s product page, and store.
2) Send them an Inquiry, if you have specific requirements for an order. This is available on the seller’s product page, and store.
3) Add a note to an existing order.
4) Manage your conversations through the inbox on your Marketplace account dashboard.