Dragged application response only to decline it

We(Me & my Wife) currently have a home loan account with Nedbank then on the 18/12/2014, we app**** for further home loan then we were asked to fill in an application(***) and submitted all the listed required documents then on the 19/12 they requested ID copies we supp**** them, 24/12 DEA form we signed, 29/12 Consent Form for bank statements we signed it. No communication until the 07/01/2015 when we received a withdraw letter reason being we didn't supply all req docs. We asked the Consultant which docs they need she said they need an EXCON letter from my wife which we supp**** then she reinstated the application. On the 19/01 we received another withdraw letter. We called the consultant and she told us that she was advised to submit a new application(***) on the 26/02/2015. Waited until the 04/03/2015 to receive an email about outstanding bank statements again, which were submitted with the application. They also requested them from our bank and on the same day(04/06/2015) we received another email with a decline letter. We were very disappointed with the service we received. We didn't receive response in hours as promised. We will be moving our bond soon!