There are three kinds of delivery for the SWTOR Credits you ordered at Goldseasy: via ingame mail, directly face to face or auction house.
"Ingame mail", your SWTOR Credits are sent to you in the game by mail. You can check any mailbox in SWTOR and take your SWTOR Credits from the proper message. The Credits are attached to the ingame mail.
"Face to face", an employee of our supplier will hand over your SWTOR Credits to you ingame. During the ordering process, please provide times when we can reach you in the game, and you will be notified within this period of time in SWTOR. Please meet the supplier instantly to get your SWTOR Credits. The meeting point will be announced via chat message.
"Auction House", just need you to list an item on the auction house and set the buyout price as the amount you have ordered from us, and leave the item name in the comments when you place the order. We will buy your item and then you can get the credits you have bought.