Did you want to answer my question, or should I answer it for you?
I take it you know the answer.
I couldn't spot anything they were connected to, but they do seem to have gone to considerable lengths to hide things from Google.
They seem to be operated by a Cyprus based company, but licensed in Curacao. It also seems the company can't make up their minds which of two addresses is their registered address for company purposes. The support phone numbers are images, not text, making sure that Google struggles to find references to them.
All the visible evidence points to this being a company operating a single Playtech casino, and with no other casino seeming to share the same support numbers. This makes it even odder that the CS answer the phone with "Hello, Playtech casino......". With only a single casino on the books, there is no scope surely for getting the name wrong.
The Cyprus company seems to exist only on paper, with only three other references to it outside of the Europlay sites. All three of these other references are from the same company information portal, and it seems this company has done "bugger all" other than incorporate and get a casino license from Curacao.
There is another "EuroPlay" that shows up though, which is "Europlay-Malta". It appears to have no connection with this EuroPlay other than the name, which was an unfortunate choice given that EuroPlay-Malta has been misbehaving to the extent that Max had to issue a warning about is last year.
Google "EuroPlay" and the results make it look as though the two are connected. Surely if they were not, there would have been a trademark dispute of some kind as both operate the same type of business.