FNB REFUSES TO REFUND MY MONEY IMMEDIATELY

I write this with the greatest frustration! I have been battling with FNB to deduct my monthly installment via Brooks and Luyt Attorneys due to my account being in arrears. I have sent numerous request to make arrangement to deduct my account and have it up to date but Brooks and Luyt had so many miscommunication with FNB, my account remained in arrears for 2 months regardless have made arrangements to double debit my account to correct this. On the 15th November 2019, I paid up my arrears and requested Brooks and luyt to immediately inform FNB of my payment to avoid incorrectly debiting mu account. On the 26th November FNB debited my account, on the 29th FNB debited my account again, despite having requested for this not to happen and having paid all my arrears. I now sit with my child's school fees not paid due to the money that was deducted from my account and now I have to wait for FNB to first confirm the payment and then tell me how LONG I need to wait to receive my refund, which shouldn't have happened in the first place. i even sent the proof of payment, but they still want to wait for their system to reflect the funds, this is totally ANNOYING. I feel violated, frustrated and having failed my parental duties to my daughter due to FNB' inconvience! I will never seek a loan of any kind from this stupid bank