Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you are responsible for all costs in relation to the use of your nintendo account , whether by yourself or by your friends , your family or any other third party ( including any internet connection fees , the costs for the necessary equipment and any other relevant fees and charges ) . 

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