Hi,
A status of settled does not mean that there is a default on the account. It simply means the account is closed. The only thing that would put off lenders is that the account was not open for a long period of time and the missed payments (in yoru case, returned DD).
How many missed paymenst do you have? If it's 8 it is a default, see below from what I got from creditexpert.
Explanation of status history
0 Payment are up to date.
1 Payments are up to one month late.
2 Payments are up to two months late.
3 Payments are up to three months late.
4 payments are up to four months late.
5 Payments are up to five months late.
6 Payments are up to six months late.
8 The account is in 'default'. You failed to keep to your credit agreement and have not responded satisfactorily to requests to bring your payments up to date, so the credit agreement has ended.
U The lender cannot give the account a status code for this month. This may be at the start of the credit agreement when the lender is allowing time for the account to be set up, when you are waiting for goods to be delivered, when you have received the goods but payment is not due to start immediately; when there is a dispute over the payments due or the goods received, or when the account is not being used.
D The account is not being used and nothing is owed.
? The lender has not been able to provide information on the payment history for this month.
Do you have any other statuses apart from the S? If it is a default it will say so on your file.
I would do a credit check and apply for a new simple bank account.
Sweetz