Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
a tripadvisor affiliate may act as an advertiser 's limited agent solely for the purpose of transmitting your payment to the advertiser . 

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