Fed up with Vodacom

I've been experiencing very poor signal inside my house due to the FACT the vodacom network is very poor. I run my business from home and very reliant on my phone working to the best capability available. I phoned the call centre and spoke to business support. After finally getting through their security questions, i was bombarded with more. (fair enough) They then wanted me to knock on my neighbours asked if they were with vodacom and if so to take my neighbours phone numbers so I could supply them with my neighbours details in order to find out if anyone else was experiencing the same issue. What a joke!!! Firstly I avoided having to deal with vodacom at all costs before. Secondly, why should I have to go and survey my neighbors and ask for cell phone numbers. All I'm needing is a signal booster fitted to my premises in order to gain sufficient signal so I can make and receive phone calls without having to go on the street or at the back of my garden all the time. I'm happy for a technician to come and do a signal test. But no, they want peoples cell numbers.