Hello!
Since we're going to need more details regarding this situation, can you open a request with Trello support directly?
Kind regards
Alisson
Trello Team
Hello, Mowayad!
the upgrade refers to a Trello Workspace, and is not linked to the account itself, but to the Workspace billing is per desktop member or multi-board Guests.
Pricing is here: https://trello.com/pricing
yes, when upgrading, you can choose between monthly and annually (annually there is a discount)
KInd regards
Alisson
Trello Team