Just open the app and follow the steps below:
- Go to Account
- Scroll down to Edit Profile & Settings
- Scroll down to Delete Your Account
- Tap the red button 'Delete Your Account
It is also available via the website by clicking on this link. Then, scroll down to the 'Delete Your Account' button.
Please note that you can only delete your account if you don't have any open bids or outstanding orders. Deleting your account means that you will lose all information about the account, and this is not recoverable.