VODACOM DO NOT CARE FOR THEIR CUSTOMERS !!!!!!!!!!!!!!!

I did an upgrade on my contract 13/6/2018 and got the Nokia 8 on 18 June 2018. With the delivery of the phone I got a Tax invoice of R1217.68, phoned upgrades and was told this is not what I owe them this is an estimate of what my invoice would look like after the upgrade. phoned 21 June 2018 to do the sim swop and was told I owe this R1217.68 for my next debit order. a log to billings was done 1- ********** ********** , phoned today 28/6/2018 still no feedback and was told now that this is a once off payment towards the phone, unacceptable as I was not told to pay a once off, go listen to your recordings no one informed me of this, I will not pay this as I was misinformed, I WANT THIS REMOVED FROM MY ACCOUNT!!!!!! Treat you clients as if they matter to you, I WANT URGENT RESPONSE FROM VODACOM AND THIS AMOUNT REMOVED AS THIS NOT WHERE I WILL LEAVE THIS MATTER