Fly Africa Failing To Authorize My Payment

The most shocking service ever. I made a payment yesterday for my wife travelling from Zimbabwe to South Africa with them. I used my Cheque Card to complete the Transaction. Funds were deducted from my account but my booking was not confirmed. I phoned FNB and they were helpful. They gave me the authorization code to give the Fly Africa. I phone Fly Africa and the call center continue to tell me to send an email. The agents seem not to be clued up about manual authorization of transaction. I was unfortunate as one of them asked that i send my Bank Statement. What on Earth must I send my back statement for one thing that can be assistested by their Accounts Department. For an airline that just started only last year. Customer Care is absolutely poor. My family and I are regular travelers and this is shocking and disappointing.