Vodacom signal problems

We have visited Vodacom on a number of occasions during this month to report problems with vodacom signal over the past 4 months and complete lack of signal during April, to no avail. I just had a call from Vodacom recommending that I cancel my contract. I am surprised that Vodacom have recommended that option rather than try and find a solution. There are a number of homes in our village who are having the same problem so it is not an isolated incident. I then stated that this has been a problem for over a month so if a payment is taken off my account I would be reversing it. The consultant then stated that he recommend that I dont do this as it would have a negative impact on my credit rating. I am sorry but I have been paying for a service I am not getting and by Vodacom recommending that I cancel the contract they are admitting to themselves being the problem. To say I am gobsmacked is an understatement.