Hi
The apartments were sold with individual alarms under special installations and are included in the specifications, but do not appear to have been installed. If you check any advert for this development, it states alarms installed as a fact.
We have taken this up with Nel and are still waiting for a reply. We expected the system to be installed and still do.
See www.oasiscalademijas.com it clearly states the installations, also check your specification for your apartment (your lawyer should also have a copy of it).
Perhaps you should phone Nel and query the lack of installation of the alarm.
Good luck and best wishes
Serene