Bad and ******** customer service assistants

So on the 30th of October my dad took out a contract for me at Telkom Promenade mall in Mitchell's Plain. We were assisted by a customer service agent who was clearly just chasing a sale and nothing else. Upon receiving my phone I asked as to what my charge would have been for the month as in what prorata would I get and I was told that I would get charged the two days. We firstly received someone else's paperwork to sign and had my dad not double checked we would've have gone home with someone else's paperwork. Come end of Novemeber the money never went out of dad's account as we had set up a debit order and I never received my bill on my emails as per request. I then received a text saying my bill was outstanding Being so worried I then ask my dad to go to Telkom and ask what is going on why didn't they receive the money he comes back with a statement saying I owe R1100 and some change. To my surprise my contract is only R399 and I decide that let us call customer service and ask for a break down the very helpful lady explains that I was charged R299 for having my phone for two days and this was not mentioned at the store they only said airtime when I asked. She then further explains the rest of the money and how it needs to be paid and we were happy about that. When we asked why did we not receive the statement and also why was the money not debited she asked us to confirm our details only to find that the agent who assisted us at the store entered our information incorrectly on the system. When we went to the store there was no seriousness put on the matter and we were told they would cover the rejection fees of the debit order but I must pay the rest of the money. When I said I'd like to lay a complaint they then dialed a number to the billing team and got through to a guy who just kept on saying there's nothing he can do I must just pay the money. When I said that's not good enough he said okay I will leave notes on your account. Unbelievable. As if notes were going to solve my issue. I am still stuck with the bill and with no answers from Telkom customer service assistants. I am in disbelief. It was our first contract with Telkom and I regret it should have stayed with the other service providers. Also the treatment that my dad received at the store is disgusting. How can you tell someone who is asking for a breakdown of their statement that you also do not know they must just go to pick n pay and pay the money then look away as a customer assistant???.