Requests for a booster/repeater not honoured

My husband and I have lodged multiple requests for a signal booster/repeater. The signal in our area is bad and our house desperately needs a booster. My husband runs a business and has multiple Vodacom contracts for his employees and cannot efficiently run a business when he cannot get hold of anyone. Similarly, I work from home and cannot make calls that I need to make for my business to operate effectively. We have lodged multiple requests for a signal but have not received any news of these requests and when we follow up we get told that the 'technicians are looking into it'. There are multiple contracts with Vodacom at stake here if we cannot get a booster installed ASAP. Complicating this further is that both of our contracts are held in our employer's/company names and thus we are unable to follow up our requests as we kept being told that the 'accounts holder' must be on the phone - however they are not based in the same region and thus do not experience the signal challenges that we experience.