Signal difficulties

From December 2014 I have lodged three separate enquiries at the Mokopane Branch in Limpopo regarding weak signal reception and the necessary steps that need to be taken to address this problem. Every time I had to fill in a book with my address and contact number, which they said would be forwarded to head office for further investigation. Since we life on a farm almost all our neighbouring farms use Vodacom as a service provider and everyone has signal problems. The voice and data signal is very poor and Vodacom has not attempted to do anything about it. My mother has seven Vodacom contracts on her name, which she wants to cancel due to the weak signal. There are about twenty people in the radius of five km within our farm who also uses Vodacom. Since this matter concerns a lot of unhappy customers I expect Vodacom to do something about this problem.