Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
funds can only be used to purchase digital products from noe in nintendo shopping services . 

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