Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
your purchase of a virtual item or in-game currency within the services is a payment for a limited , non-assignable licence to access and use such content or functionality in the services . 

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