Everything you need to handle your subscription is in one place.
Go to Settings > Company Settings > Manage Account.

Here you will find four key tabs:
Manage Subscription: View your current package (e.g., Trial) or upgrade your plan.
Payment Methods: Add or update the credit card used for monthly billing.
Transactions: View a history of all invoices charged to your account.
Billing Info: Update your company’s billing address and details.