Vodacom TERRIBLE NETWORK AND SERVICE

I am not happy at all with Vodacom. I am a client of Vodacom for nearly 20 years now and I feel that the service is terrible. We have network issues constantly for the past 2 years. We lose signal on our phones and router PERMANENTLY. I live in the city, not in a rural area, so I do not understand what the problem is. We regularly complain and then Vodacom says that they will send someone out to test the signal. Then it NEVER happens. Other times they say the network is too busy. REALLY VODACOM????? Really? What a nice excuse to have. Then when I lose it totally with them then they say you need a BOOSTER??? Really???? I need to pay EXTRA MONEY for something to ENABLE ME TO USE A CONTRACT THAT I ALREADY PAY??? I AM NOT HAPPY, SICK AND TIRED and DISGUSTED. That is how you treat a client of nearly 20 years. I am sick to my stomach.