Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
when using the nintendo account service , you must comply with the nintendo code of conduct . 

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