Disappointed it's the first time using Vodacom network or buying a phone from them.

I bought the Tecno spark 7 pro dual SIM which was on display and was the last one remaining. I didn't mind that. I asked if the phone is locked they told me I can call customer care line to unlock it and that they will also send me an unlock code today or tomorrow. I have been calling customer service and getting no help just machine talking. Like really!! There is no option of unlocking of the network and it never asks if you want to hold for a real agent. Like seriously, there are no agents just machine. The chat box referred me back to customer service I even sent an email that nobody responded to. Like are there no people to respond to calls?