Paying for a product that has not been delivered

Absolutely poor service. I made an online application for a mobile contract on the 15th of June 2018. I received a phone call to complete the application. I then received an email stating that a vetting process would now take place and I would receive a call back within 48 hours. The phone call never happened. To my surprise a debit order went off on the 25th for contract. I still did not even have a reference number or even a phone call to explain the terms and conditions of the contract. After numerous phone calls and escalations, I finally received a reference number was informed that I was out of the 4-7 working days delivery period. They will expedite the delivery (this conversation took place on the 26th of June 2018). Once again not a single form of communication from Telkom's part as well as no delivery of my device.

I tried to make contact one again yesterday (28/06/2018) as well as today (29/06/2018) where I was told the systems are off-line so I cannot be assisted. I then asked to speak to a manager where I was told that I could not speak to a manager as I was being unnecessarily difficult due to delivery times being between 7-14 working days.

How many escalations need to take place before I can either get the mobile device delivered?