If you'd like to purchase Prism, please visit our website at https://www.graphpad.com/how-to-buy/
If you need a student license, refund, official quote (for orders over $750 USD), or proforma invoice, please submit a request to help.graphpad.com.
If you want to cancel your Prism personal subscription, please sign in to your account at www.graphpad.com/myaccount/. Your username is your email. Once you have logged on, select "Manage Plan" followed by "Cancel". Cancelling your subscription will not affect your ability to use Prism for the remainder of your purchased term, but will prevent any further renewals of that license.