trial for trello premium

[Joe Le]

i have 3 members on the board

in the billing section

it shows 8 trello licenses that cost very expensive

not understanding why

[Mike - Dreamsuite Consulting]

Hi, 

In Trello, you have workspace members (billable), multi-board workspace guests (they are not in the workspace but they are on 1 or more board - billable) and single board guests (on 1 board and not billable)

You should look at the workspace members section and check the tab that says "Guests".  This should give you a clue and I suspect you have some multi-board guests as well as workspace members.

This article should help clear things up:

https://support.atlassian.com/trello/docs/multi-board-guests/