I signed up for a free trial for 3 people and am now being asked for payment information - why?

[mtruong]

Pulling from the licensing FAQ for evaluations

Atlassian Cloud - Atlassian offers fully functional evaluations of our Cloud products for a period of 7 days (can be extended to a maximum of 14 days). When your evaluation expires, you can continue using Atlassian Cloud by adding a credit card from your My Atlassian account.

[Nic Brough -Adaptavist-]

At the end of the trial, your system becomes a production system, which has costs.