Go to your Settings -> Profile page and click on the 'Edit Profile' button to change email. Or click on "Change Password" button to change password.
At your Settings -> Billing page by clicking on the 'Update payment method' button. You would need to know your Order Number. -
You can donwload your invoices at Settings -> Billing page.
You can Upgrade your plan at Settings -> Billing page by clicking on the 'Change plan' button.
No. Your historical data and account settings will be left intact and you can have uninterrupted access to analytics not influenced by any changes of your subscription type.
You can stop your subscription at Settings -> Billing page by clicking on the 'Cancel plan' button.