Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
more information about when service fees apply and how they are calculated can be found on our service fees page . 

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