Poor service Vodacom

It's been 3 weeks since I reported very poor wifi service to the vodacom store at Vodacom Springs Mall. We moved to Springs recently and since then our wifi connection has been very poor, and since my wife is working online from home, this is a huge problem for us. At first the consultant did a signal sync to try and resolve the issue and informed me that someone from technical would contact me within 24 hours to set up an appointment to come and see us to determine whether the signal could be boosted or improved somehow. I had to come and see a consultant again last week as no one from vodacom contacted me. Once again nothing was done, even after I contacted another consultant again telephonically.This is not acceptable as it has a massive affect on my wife's ability to do her work.