This is official DLC pack.
No required rank, trade or credits tax. I use your account.
No problem in negative balance or ban.
Seller login to buyer's game account to fulfill advertised tasks. Procedure as follow:
1. Buyer must logout from web (warframe.com) account and is not allowed to login again until the order is completed. We will not be liable for any losses if buyer login to the game account while leveling is in progress.
2. Seller will contact buyer through real-time translation chat.
3. Seller will begin work after login to the account.
4. Buyer will receive chat notification once order is completed.
5. Buyer is required to change the password upon completion of order.