you are present good service but many people try hacking personal information by the app, add-on, software or emailing
That's why they DO provide OpenVPN configs if you don't trust their software. Learn to use it, if you don't. Questioning won't help here, as their software is not open source (as far as i know). You can download the OpenVPN client and use it with the following config files: https://www.e-vpn.co.uk/client/index.php?rp=/download/category/4/Download-Our-OpenVPN-Files.html
example: Facebook data breach: 40 MILLION more users personal info was leaked, FACEBOOK has revealed the data of up to 87 million people using the social media may have been shared with political firm Cambridge Analytica - nearly 40 million more than previously thought.
Not a valid example, as you are comparing a website like facebook which does not traffic all of your network data like VPN does.
I'm confused this service real/not 
Define what you mean with real? If you mean safe, yeah for sure if you are using https sites with OpenVPN software. However http sites are always unsecure, but most of the sites today run on https so VPS provider is not able to see what you send to the end server assuming that your computer is clean and secure. However i would be more concerned of running windows, than sending any unencrypted data through a VPN provider.