[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: In some instances, when you make purchases on or through our website(s), we may collect certain payment information from you on behalf of our payment service providers, but this information is temporarily cached in a way that is unreadable by King. We do not collect or retain credit card information. Our payment service providers will provide us with information about your purchases so that we know if a purchase has been successful. When you purchase items via our mobile apps (such as those you can purchase in the App Store, on Facebook or on Google Play) we do not collect or store any payment information from you."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]