If you go to your Uptics Account, click the Profile icon in the bottom left-hand corner, and select Plan & Billing, you will see your payment charges under 'Billing History'.
You can also navigate to the Billing page by clicking the Profile icon, selecting Settings (gear icon), and then the 'Plan & Billing' tab.
Under the 'Plan &Billing - 'Plans' section, you will also be able to see your current plan and make any modifications.