Conditional call forwarding

I am a newbie here. Just got Galaxy s4. Having the same problem and after spending 1hr 45 min on line with tec. I gave up and started my research. I have tried most everything suggested to no avail. I will post if I find an answer. M
 
This is annoying! "Conditional forwarding active" message every time I finish a call. I tried to disable it in calls/settings/call/More settings/Call forwarding/Voice call/Forward when unreachable = there is a phone number by default to a local service provider and cannot be disabled!!!!!!!
 
I have a Samsung Galaxy S5 mini.
I tried changing the settings and nothing worked to get rid of the annoying "call forwarding is active" pop up.

BUT THIS DID: just dail ##002# the pop will vanish which is mentioned further up in the thread (#16).

So thanks, Keisha Crawford for that one