Vodacom Signal

I wrote a complain about the signal quality and service of Vodacom 10 days ago .Via Hellopeter I got a quick response from Vodacom advising they will attend to the complaint.It is now 10 days later there has been no further contact from Vodacom. I have had this promise from Vodacom at least six (6) times since December.But it remains a promise. There has been a slight improvements in that we have certain times of the day a signal but most of the time the signal is absent .I have seven (7) Vodacom contracts and had to buy a Pay as you go contract From Telkom to keep contact to some of my customers. There seems to be no communication between Vodacom office and their technicians.