wrong defaults on my credit profile

I was a standard bank client. I had 3 accounts with them. loans. credit card and overdraft. 2014 I was in a bad financial situation. I failed to make m monthly payments and my account was handed over to their legal department. 29 January 2015 I settled all my accounts through their attorneys. October last year I app**** for a home loan and it was declined due to a default from standard bank. I have forwarded all my settlement letters to them to update my credit profile but someone is not doing his job cause yesterday I checked my credit profile through Experion i am still sitting with a default under my name.. they listed my name on itc on July but I settled my account on January. why is so difficult to fix that.. is am lost a year and th i is affecting my credit scoring. I got discounts on two account when I settle the accounts. why is the different sitting as a default under my name. is easy to put our name on itc but updating correctly is difficult. this is unfair and not acceptable. how long is going to take standard bank to fix this. I want to buy a house and no one wants to give me the loan cause of wrong listing