Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if we are unable to contact you using the contact details that you provided during the order process , we will treat the order as cancelled . 

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