Back and forth for months for opening accounts

I opened 2 youth accounts for 2 kids in November, and never heard anything from FNB until 2 weeks ago after enquiring several times and was told I can collect the cards and everything is sorted. To my surprise I was only given 1 card and they said the other one had no documents of which I had sent more than 5 times. Fine so one account was activated but when trying to deposit money it keeps cancelling and Today im being told it's because it's missing documents, the very same account I was told it's the only one that's sorted. Im being sent back n forth explaining the same thing and end up with no one to tell me what's really going on, except that they can’t help me and give me KYC number which never goes through. At the FNB branch where I received the one card that was activated they said it seems like all the documents(ID, Birth Certs, proof of address, declaration of address for both kids) were loaded into one account and the other is empty. last week I received another email from KYC requesting documents for the 2nd account who’s card is still with FNB and I sent it again. No one got back to me up to today. I have followed all the instructions on the email and sent relevant documents more than 5 times now. I have spoken so many FNB agents since I opened this accounts and they all keep transferring me to another, I keep explaining the same story over and over again to no avail. Everyone tells me a different story which contradicts the other.