Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you must cancel your subscription before it renews each month in order to avoid billing of the next month 's subscription fee to the payment method you provided . 

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