You can reactivate account if:
Follow the troubleshoot steps. However, if your Box account was created before your email could receive inbound mail, your email was likely placed on email suppression list as a result of a hard bounce.
Reach out to firstname.lastname@example.org and they will evaluate your request. Keep in mind that you can only reduce the number of seats at the end of your term.
Box.com accepts credit card, ACH, wire, check and direct debit where available. Please use the payment method outlined in your contract.
Please ask your Box Admin to contact them at email@example.com
If you pay by credit card, receipts are automatically emailed to the "Bill To" address they have on file. If you use another method of payment, Box.com will email your invoice prior to the due date outlined in your contract.