Promises not met

About three weeks ago I received a phone call from head office Standard Bank, stating they are looking for new clients. I was then told because I have a Home Loan with them they are offering me a deal in order to switch my current banking account with FNB to them they would have offer me a 0.2% concession on my bank including a 2 month payment holiday

As I run my own business I had to take valuable time out of my schedule in order to open an account with STD Bank. I was told by the business banker it could have been done online, I told him that I needed proof via e-mails that if anything went south I had proof in writing that promises were made and not kept.

This morning I see my account was debited for the amount of the Home Loan. I've asked them to escalate this matter as of yet no constructive answer has been given.

Who ever from STD Bank that wants to contact me can do so, I have the e-mail correspondence between me and the employee who offered me this, including the branch's business banker asking for the stuff to be loaded.