Vodacom stil have receotion and other problems for all customers in a raduis of 60 to 80km

#Vodacom all customers in our area a raduis of 60 to 80km are still experiencing signal problems problem has not been resolved yet please fix this problem. I can now for the past 2 weeks or more not call my Son on his Telkom no also only at his cell C no.You opened a few tickets and closed them sent me smse but yet the problem is still unsolved for all customers please solve this problem. Kind regards