Very poor Network coverage

I have a horrible Vodacom network signal at my home/business place. I get drop calls when calling or the receiving incoming calls and cannot hear the other party. Sometimes there is totally NO network signal at all. I have logged a complaint directly with Vodacom, received references, but until-to- date, there is no remedy to the problem from Vodacom. I have employees, business partners and family members that are always in my place and using Vodacom lines and they are also affected. I'm losing business on a daily basis as my business is run from home. I have been paying huge amounts of my hard earned cash to Vodacom but I don't get the respect that I deserve and thinking of cancelling the contracts. Their service is appalling and they cannot even bother to send a technician to visit my place and do network assessments. Should they not provide proper remedy within 20 day, I will be escalating a formal complaint with ICASA and will insist that the matter be referred to consumer compliance complaints commission. My demand is that Vodacom must install a network booster to improve the coverage and compensate me for all the charges of the failed calls. C/N ***