Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
except as may be required to register and/or maintain your account , do not submit personally identifiable information ( e.g. first and last name together , password , phone number , address , credit or debit card number , medical information , e-mail address , or other contact information ) on the service . 

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