bad reception no repair

as with Cell C , the signal in my area of Dundee KZN has gone down to such a degree that we cant get or make calls , I reported to call centre that we need Technical assistance to get the carrier signal back to what it was , we had no problems for years and then all the sudden 3 mounths back we started loosing signal.<br> <br> if you restart your mobile it works for about 2 min and then it disappear . <br> we have reported it to cell c and to Virgin call centre, but no effort to rectify the problem, they only care about the money every mounth but doe not want to maintain there carrie towers....<br> <br> MTN and Vodacom has full signal, but virgin and cell c nothing...