Complain about service

I want to complain about the service of Mweb. I already have an account with them since November 2020. I app**** for another installation where I am staying now. 1 day after the application the guys from open serve was there to do installation. They said they need cable and I must buy it. I don't think I must buy it, because it is included in the package. They left and said they will come back this week. Monday they told me it will take 1 to 2 weeks for installation. This is unacceptable. I try to make contact with mweb, but you can never get hold of anybody. I send a message on facebook. They requested my details and until today no feedback from them. I told them if it is not done by Friday the 28th I want to cancel it and they must come and collect their router. I will go to another service provider. Just want to mention I already received a statement for the amount I must pay month end, but still awaiting service from them. I am very unhappy and upset. Seen that I am already a customer of them.