[{'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: Notwithstanding the foregoing, if you verify in a reasonable way that you reside in the European Union and you have purchased virtual items or currencies from Com2uS, you may have the right to withdraw from a purchase within seven (7) calendar days, commencing on the day after the date of purchase (the "Cooling Off Period"). However, you lose your right of withdrawal if the performance of our services begins before the end of the Cooling Off Period. You acknowledge and agree that the performance of our service is deemed to begin once you use any portion of virtual currencies or virtual items in playing Com2uS Games, which results in losing your right of withdrawal.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]