To do that, you must have a Business account and then add the instant storage by doing the following:

  1. Sign in to your reseller console.
  2. From the left menu, click on Upgrade.
  3. Under Add Business Accounts, check the box next to Add account and select from the dropdown menu the number of accounts you want to add.
  4. Check the box next to Add Instant storage and then select the amount that suits your needs.