Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
these items are not redeemable or subject to refund and can not be traded outside of the services for money or other items for value . 

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