Yeelight SPIT in their customers faces

they never answer by email, feedback forms and emails…
what a shame!!!
for the 10th time ill ask again
-how to fix the app shortcuts stopped working
-how to have real LANcontrol when internet is down from the ISP side (not local network issue!)
-can yeelight even work without yeelight servers?? i want to control it purely via lan without ISP service