New account - NO SERVICE

Good day, I am a new customer and opened an account with FNB. I was allocated a banker and told to download the app and online banking tool. My account has been 'opened' for almost 3 months and the service I have received is nothing short of horrible. I opted to open accounts for my 2 daughters and to date their accounts are not active, I handed over copies of their birth certificates, my ID and proof of address which my banker Tania Hector says was needed by the courier company and not to have their accounts activated. My credit card was delivered and not activated either and of course my debits orders not transferred from my existing account to the FNB account. My banker above has decided that answering my emails is optional and the technical assistance she said would call me, also doesn't have to contact me. Why I'm I being debited every month for bank charges when I am not getting any service. I have used the chat option on the banking app and asked for a manager to contact me...nothing and I have asked Tania to escalate my query but as above answering my emails is probably not part of her job. Can someone please reach out so that I can get some what of a service that I am paying for?