FNB the bank unwilling to assist, just pay us

Again its me and FNB. Unfortunately I am an independant contractor, meaning that I run the risk of getting paid late. Doesnt happen ofter, but it has happened in the past. When I was at Standard Bank, they would gladly assist to cover some debit orders until the salary is paid. Preventing me getting black listed or debit orders failing. Unfortunately I made the unwise decision to move to FNB, after they promised me the heavens and earth to move my accounts to them. So currently I sit with a situation where my salary will be 3-4 days late. Unfortunately I have a couple of debit orders that are going off in that timeframe. I contacted FNB, and just asked them if they could cover the payments, for those couple of days (roughly R20000). And when my salary is paid in, they could immediately deduct the money that was used to cover the debit orders. But oh no, they will not do that, they want those debit orders to fail, because then they can charge me penalties, which is extra money for them. So after ******** me to join them. Then admitting to promising me services they could not deliver, they would not even do something to assist in this. Skip them, go to any other bank, they suck