Vodacom Fibre Dysfunctional Fault Response System

I complained on 07 Dec 2021 regarding no internet connection on my Nokia fibre router. I have phoned Vodacom every working day since the problem was lodged. On the 8th I was informed the matter had been escalated to Nokia with a ref no. ***12. Since then I missed 3 calls from their technicians who called once on different days. I tried phoning the numbers back but ended up at a call centre. The call centre had no means of connecting me to the the technician whose call I had missed and I was just told that I should wait for the next call. No other means of communication is apparently available to the technicians except one way call to the complainant on their no or alternate no. They have no functional complaint escalation system in place. All one can do is call and irritate helpless call centre agents. After 10 days there is still no resolution