No internet for months, but Telkom keeps sending monthly bills

If possible I would give 0 stars. After being a customer for over 10 years and always paying our bills, Telkom decided to stop providing internet services but keep on billing us for months. Telkom decided to change to fiber in our street in Barkly West (NC). We got excited and agreed to change our contract/product to fiber. But instead of getting faster internet we are now left without internet for months. We have contacted Telkom's customer support multiple times, but Telkom simply refuses to answer. Siyabonga Khanyile, who initially was dealing with our request, just refused to answer any of our mails. Telkom does not provide any phone number or other channel where one could contact the customer support directly. So, they do not care about customers at all.