Company beyond repair of customer service and services offered

Poor network, called numerous times to get assistance over 25min calls with technical department asking me to reset my setting over and over again and still can't achieve anything higher than 3G on my iPhone with a max download speed of 0.93mbps and upload of 0.06mbps. Put my wife's Vodacom sim and I instantly get 5G. Also on any minute contract you can't call what CellC call 'special' numbers which is just a VOIP telephone number which was not explained to me upon taking the contract. Also CellC are denial that they are literally decommissioning site after site and the reason their network is poor. After +10 years of being a Cell C client I can for sure say that the company gives an appealing service and worse customer service.