Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
15.2 you may terminate this agreement at any time via the `` cancel account '' feature on the airbnb platform or by sending us an email . 

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