Bad Service from nedbank and their service provide

I went to Nedbank on Saturday the 21/02/2015, to make a deposit on the machine outside the branch, the money was retain by the machine, I informed the call center about the incident and I was told to approach the bank on Monday the money will paid back, On the 23/02/2015 I went to the branch the teller told me that my query will be resolved in 7 days time, I demanded to speak to the manager two ladies came to me which i doubt if the was a manager there they told me that my query will be resolved the same day. On the 24th of February 2015 I spoke to the manager and the was no help. On the 25th of February 2015 I called the bank and I was told the different story that I must give them the name of a call center agent that I spoke to on Saturday, but I gave them the reference number which was given to me by the call center agent. This is fustrating it affected my relationship with my creditors, now I cant get more supply because of Nedbank!!!!! I dont know what to tell my creditors anymore, I wanted to close this account I was told cant i need to wait for this refund. They have the last say with my money and my rights. IS THIS MAKING THINGS HAPPEN!!!