Greeting，
Thank you for contacting Amazon seller support team.
I'm glad to assist you. From your email, I understand your concerns regarding account that shows "Due to lack of sales, your Amazon seller account is inactive"。
Dormant account activation process is the seller account with the main account binding mail, write English mail to the performance team mailbox seller-performance@amazon.com .Amazon needs to re-verify your financial information and account status.You need to provide 1) The bank card and credit card information of the account 2) Recent account sales 3) the seller's sales plan, if the performance team find there is no risk ,they will activate the account.