Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
we will automatically bill the payment method you provided for any purchased gift subscriptions at the time of purchase , not delivery . 

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