Extrememly Poor Customer Service

Once again I am on this site to express how dissatisfied I am with Cell C technical department. I have been trying to get information with regards to cell phone signal at my residence now since the beginning of March. I wrote on Hello peter on the 13th March and yet my query is still unresolved. I have to call Cell C daily with more than one call per day and still not a single call from Cell C with each time the agent mentions that they have email the agent whom is dealing with this query (Charles) to revert with an update.. I am extremely disappointed. I cannot use my internet at my residence (Stone Ridge Dr, Edenvale). The signal is extremely bad. I am paying for a service that I cannot utilize and at the same time receiving awful customer service. I am know therefore requesting for some senior management to look into this matter so it can be resolved asap. It is disappointing to experience that the poor customer satisfaction from Cell C the service provider.