Why can't I upgrade to a paid plan?

To switch to a paid plan, your workspace must first have complete billing details and a payment method on file; otherwise the change is rejected with a message that payment info must be added. Fill in your company billing details and add a card on the Billing details page (Configurations, Plans and billing), then try again. Also make sure you are signed in as the workspace owner, since only owners can change plans. Workspaces billed through Shopify do not need a card in Deskhero, because Shopify handles payment.