Based on the context and the answer, generate a question. 

Context: A little later , someone called me and set up an appointment to make a house visit to check the defective decoder . The agreement was reached : Friday , 19th of September noon time . Make a call first before heading to my small room . The day came but the assigned person somehow got stuck in the elevator or got lost somewhere along the way . Until now I still ca n't watch National Geographic or Star Movies . Is the lame customer response due to the bad pay rate to NOW TV workers ?

Answer:

Not all the channels are coming through



Why does the decoder need to be fixed ?