Worst customer service!!!!!!

I recently took out a new contract with vodacom moving form a different service provider, I app**** and the contract got accepted, I received the email confirmation and a few days later i received the phone, when I logged into the Myvodacom app I noticed the bill was much higher than what I agreed and what I was approved for, when I phone the call center they keep saying its an online error and transfer me to the online department where no one can assist me, they told me I need to email Vadmin, which I did I received a ticket number and that's the last I heard from them when I try call they all say that I received the wrong amount and I need to return the phone or pay the amount, yet I have an email confirming the amount I app**** for, when I ask to speak to a manager they refuse and they keep saying they cannot help me the only people that can help is the vadmin which I have emailed constantly and they dont reply and they don't have number they only work on email.

Worst service in the world!!!!!!!