Awful service from Vodacom Customer Service

I wrote a bad review about Vodacom's lack of service 30 days ago. I received a call from Vodacom's customer service the day after my review was written with apologies and promises that they would help solve the bad reception that I am experiencing for the past 7 months. The matter was escalated to another department of customer service. A few days later I received a call to say that there is nothing they can do. I have been insisting on a booster to improve the bad reception but Vodacom's excuse is that they don't have boosters. When I sent them a pic of the booster which I know they provide customers with bad reception areas because our neighbourhood has had the boosters installed, I was told they are out of stock. Another promise that another department would be in contact with me. 30 days later nothing happened yet. The excuses are endless and the promises empty. I have NEVER experienced services like it before! 70% of my calls are dropped daily. My next step is to cancel all my contracts with Vodacom and move to MTN.