Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
if payment is not received by us from the payment method you provided , you agree to pay all amounts due upon demand by us . 

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