Clear Access Consultant being Rude

I have been liaising with Clear Access for a few weeks already about Fibre and Internet solution. In my communication with them, I told them that I have my own router (shared the details of the router prior) and this was not picked up as an issue. Yesterday your installation team comes through and due to loadshedding they were unable to ensure my coverage was sorted. This morning (29th Oct), I call your helpline which i was asked to contact to set up the router. Your consultant is absolutely rude, impatient and continues to tell me that I do not have the correct router. I purchased this router 5 months ago and the technicians confirmed yesterday that it will work. I want you as Clear Access to dispatch your technical team to my place early Monday to resolve. This type of service is not acceptable. You also need to learn that not Everyone speaks your technical jargon hence make it simple for the customer instead of being disrespectful to them. If this is not resolved on Monday,the 31st Oct, I do not want to do business with Clear Access.