But there are lot of true cloud mining services available for us to get benefits with them.
No, there are not a lot of genuine cloud mining operations. Most 'cloud mining' sites are ponzi scams or, at best, fractional mining ponzi scams.
or invest for free in my system "about U2cloudmining site"
you can be sure never loose.You can only earn more or earn less...but never loose.
Forget about being treated as a legit mining service. No one will give u even a second thought, unless u get a proper top level domain explicitly for your service.