Vodacom's pathetic service and disregard about customers' legitimate complaints

I have had tried to upgrade my Vodacom USB modem since September 2020 and have been shunted from pillar to post. Staff at Vodacom promise to phone back but almost always do not. I have asked THREE times to escalate my complaint and have been sent e-mails advising that an escalation will be done and a Solutions dept or Team leader or the like will contact me. On 2 Oct Mr. Mogammad Manuels from Vodacom Customer care, e Services sent me an e-mail confirming he had escalated my complaint and that someone would contact me within 1 to 10 working days. That did not happen. I left numerous messages for Bongile Appleni in Upgrades to phone me. That never happened. I sent yet another e-mail on 19 Oct and got a call and e-mail from Connie Nthekenyane who promised she would escalate my complaint to a Team leader in Upgrades and I would get a call from that person. That also never happened. I have since sent ANOTHER e-mail without a response. In my view Vodacom does not care a hoot about its customers, is arrogant, do not take legitimate complaints seriously and in fact do NOTHING about them. In my opinion their service is PATHETIC. In fact they do not provide a service even to longstanding faithful customers like myself