[{'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: 2. Price and Payment The charges for any Content downloaded or accessed and any Services used are displayed on the Site. The relevant charges will be deducted from your available credit if you are a pre-paid customer or should appear on your next invoice from your service provider if you are a contract customer. Other payment options may be offered to you on the Site and used by you to purchase the Content or Services."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]