Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
instructions for right to cancel ( of a transaction in nintendo shopping services ) 

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