Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if you cancel your airbnb account as a guest , any confirmed booking ( s ) will be automatically cancelled and any refund will depend upon the terms of the listing 's cancellation policy . 

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