Poor Customer service & no internet cinnection

Have been trying for two days with no success to their customer service is very poor. I logged a complain on whatsapp of no internet service connection on my router.. I received a message back that a customer care agent will call me shortly that was yesterday still waiting. I send a WhatsApp message again today still received a message that a customer agent will be with me shortly. I'm very angry because I'm busy with my exams and can't access the internet. I'm cancelling this is ridiculous.