No support

We logged a query with FNB online customer services yesterday requesting help with an issue with our account, but they haven't made contact with us yet. It is urgent and our account seems to be frozen and debit orders aren't going off because our available balance (Which is twice as much as required for our debit orders) was placed to balance and doesn't seem to be accessible/available anymore. We used to have an overdraft allowing these debit orders to go off until necessary fund are paid into the account anyway, but for some reason this isn't happening anymore either. We need support as soon as possible because right now debit orders aren't going through and we are getting penalties and extra costs for each failed transaction. We will be forced to open an account with a rival bank if this matter isn't resolved immediately.