Nedbank showed me their best incompetence

I am Nedbank Customer for years now,bt I am so disappointed that I am in a stage where my own bank cannot help me..

My story goes like this,

I made a transaction on the 29th January paying rent for my place to stay &the transaction went through on my side whereas the merchant said it declined on their side..I couldn't understand &today I went to Nedbank to clarify this &I was told that the transaction is pending I must call the Call Center to clear it..

With excitement I called the Call center &I was told by the Authorization Department that they can't clear that transaction, I must tell the Merchant to call them on my behalf in order for them sort the issue, I went to Merchant &they called them &they were told that No they can't help them either the Merchant now must get their bank to call Nedbank...

Today I will sleep outside because of this matter..Nedbank I need the Clarity &proper explanation before I close my account with you guys