Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you acknowledge that no other written , oral or electronic communications will serve to modify or supplement this agreement , and you agree not to make any claims inconsistent with this understanding or in reliance on communications not part of this agreement . 

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