Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
your credit card issuer may give you the right to opt-out of the update service . 

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