It's important to remember there’s no such thing as a credit blacklist - blacklisting by credit bureaus was stopped many years ago.
If you’re being rejected for credit and want to know why, the best thing to do is to ask the lender you applied with. You should also look through your credit report and accounts to see what might be negatively affecting your score.
If you’ve recently missed a payment on an account or have a judgement on your file, this could explain why the lender has rejected your application.
If you find any incorrect or unrecognised information on your credit report, then you should let Experian (our data provider) know about this. You can raise a dispute with Experian by going through our Chat located on the right-hand side of this page.