Worst customer experience ever

I have been waiting for the manager to call me back since Friday. I was told the turnaround time is 24 hours, it's more than 72 hours and no manger has made an attempt to call me back. I spoke to Tarryn, Silakhile, Mishka, Bonani and Lindokuhle. All these people have sent escalations which are not attend to. The kind of service I received is beyond awful.