Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
your purchase will be subject to apple 's applicable payment policy , which also may not provide for refunds . 

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