Contact
Email hello@couplenamegenerator.net. That address reaches the people who build and maintain the site.
Corrections
If the engine produced something wrong, a page contradicts another page, or a claim about how the blender works does not match what it actually does, tell us the two names you used and what you expected. Engine behaviour reports are handled ahead of everything else, because the research pages are generated from the live engine and an error there spreads.
Human review submissions
The human review study is collecting blind-reader results and currently has none. Run the blind name test with somebody who does not know the pair, then send the blend, the two source names, what your reader said out loud and which names they recovered.
Failures are more useful than successes and are the ones people never send. If your blend confused somebody completely, that is the submission we want most.
What we cannot help with
We cannot tell you whether a blend is legally available. If you are building a business, a product or a brand on a combined name, that needs a trademark search in your jurisdiction and professional advice.
We also cannot tell you which name to pick. That is not modesty, it is the entire design of the tool.