I’ve got the app set up, if I can help somehow meddling with tcpdump and network tracing just ask and I’ll try.
OK, let’s start 
I created a dedicated thread under “Share your projects!” → “Custom Integrations”
Custom Integration: Tecnoalarm Italian anti-theft system to track it better
The TecnoAlarm Alexa skill stopped working on October 31st.
As of today, it still doesn’t work.
The support service, which I urge you to contact, has not yet replyed to me.