Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
our designated agent ( i.e. , the proper party ) to whom you should address such notice is listed below . 

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