At the end of the free 30-day trial, you will not be charged/billed because we don’t require a credit card to start the trial.
If a payment method has not been added, then all features of your Matter Slack channel and Web App workspace will be locked.
For example, team members will not be able to give or receive Kudos.
In order to unlock the channel and workspace, a payment method will need to be added to the workspace.
Channel Owner/Admins can add a payment method in the Web App workspace: Channel Settings > Billing.