Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if you cancel your airbnb account as a host , any confirmed booking ( s ) will be automatically cancelled and your guests will receive a full refund . 

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