Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
oculus may attempt to collect unpaid charges , including by attempting additional charges to your payment instrument , use of collections agencies and any other legal means . 

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