No incoming calls 9 days now

From the 8th of February I am not getting incoming calls, nor sms's. I called call centre 5 times by that Monday. Everytime they say they are aware of the issue with clients and IT is working on it. No notification via email or anywhere informing us that they are well aware of this issue. My calls worked again from Tuesday to Wednesday, from thw 15th again my calls go straight to voicemail. Contacted them via facebook messenger. And with every follow up till today they just say they are working on the issue. I am a contracted client for more than 12 years. Never had an issue. This is causing issues in my work and personal live because I am missing important calls, and they just put their hands in the air? All in all I have paid for service not provided this month for 9 days. What if my family have an emergency and they cant get hold of me? Do you even understand the fatality of this issue Cell C