Aabyss Ltd are a Nominet domain name registrar. If you have an objection to the content or use of a website where Aabyss are the Registrar, you should first complain to the person or organisation who registered the website domain (the registrant). If that is unsuccessful you could complain to the company or person who hosts the website.
The Nominet WHOIS tool can be used to find the name and address of the Registrant and the Registrar associated with the domain.
If you are unable to contact the Registrant or the company who hosts the website please email email@example.com.