[{'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: 4.3 You agree that all sales by us to you of Virtual Money and/or Virtual Goods are final and that we will not refund any transaction once it has been made. If you live in the European Union you have certain rights to withdraw from distance purchases; however, please note that when you purchase a licence to use Virtual Goods or Virtual Money from us, you acknowledge and agree that we will begin the provision of the Virtual Goods or Virtual Money to you promptly once your purchase is complete and therefore your right of withdrawal is lost at this point. For the purposes of this paragraph 4.3, a "purchase" is complete at the time our servers validate your purchase and the applicable Virtual Goods and/or Virtual Money are successfully credited to your account on our servers.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]