FNB stole my money

For REF ********** NF, FNB Still has not paid my money since I reported a week ago. I suspect the bank to have ****** my money. Stories that they tell me are not corresponding and there has been no proper communication to update me with regards to when am I getting my monies refunded by the bank. They are still ignoring my emails. So there is still no improvement. Can someone help me get my money from this bank? Post this issue, they also processed a transaction on my card without doing a secure verification. The transaction also went through yet it gave me a message saying "debit card auth failed". All the money in my account was deducted. Please help me recover my monies form FNB. I didnt proceed with the purchase. But the bank took the money