H2G shows listings from multiple sources. When you click on a listing it redirects back to the site that posted that listing. If your listing is redirecting back to ABB then ABB posted your listing on H2G.
Sometimes my listings show on H2G several times from multiple sites, other times my listings are not showing on H2G at all. I don't think all listings from each site are always being shown on H2G. Today your listing may be shown from ABB but tomorrow it could be shown from HA/VRBO.