Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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at such time , if you do not click `` i accept '' , you may not be able to complete such purchase or gain such access . 

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