Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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as part of your use of the fitbit service , you may receive notifications , text messages , alerts , emails , and other electronic communications . 

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. OPTIONS: ['Unilateral termination' 'Contract by using' 'Jurisdiction'
 'Limitation of liability' 'None' 'Choice of law' 'Unilateral change'
 'Content removal' 'Arbitration'].