Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
in addition , if you purchase physical goods from oculus , other terms of sale or promotion may apply from time to time . 

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