If you want to remove your account on C-date, a website for casual dating, you can easily do that in the Settings of your account.
I’ll show you below how I managed to close my profile permanently using a desktop computer:
1 Go to www.c-date.com
and log in by entering your email address and password on their site.
2 Select My profile in the main navigation
3 Choose Settings in the sub-menu that appears
4 Scroll down to the Delete profile link
Warning: It’s hidden very well because the color of the link is nearly the same color as the background color.
5 Confirm that you want to cancel your membership
A message will appear:
Your profile has been deleted
=> your account is closed now. Mission accomplished!
Source (and thanks to): c-date.com