The phrase "deceptive manner" means to behave or act in a way that is intentionally misleading or dishonest, making others believe something that is not true. Full definition
Also something else we forgot to mention is that not only does Timespace Holdings Limited create bogus dating sites they are also behind fake dating apps such as GetNaughty, that operate in the same deceptive manner. (datingbusters.com)
Yes the site is operating in a deceptive manner but for God sakes they tell you exactly what they are doing! (datingbusters.com)
The basis of your story is about catfishing, which is a deceptive manner of creating an intimate relationship for the purpose of deceiving someone. (readersfavorite.com)