Judgement
If you fall behind with your account payments and fail to respond to reminder letters then the credit/service provider may apply for a court judgment. A judgment is granted when a court of law gives you the instruction to pay the outstanding account. A judgment remains on your credit report for 5 years.
Notices
If you fail to pay an outstanding account the credit/service provider can take legal action in the form of a notice against you. Notices include administration orders, provisional sequestration, final sequestration and rehabilitation orders. Administration orders remain on your credit report for 10 years, rehabilitation orders remain for 5 years and sequestration orders remain for 10 years if no rehabilitation order is granted.
Default
Default or adverse information is when a credit/service provider has listed you for non-payment and is planning to enforce their rights by taking legal action against you. There are two types of default or adverse information.
A) Default data enforcement action listings – this is when a credit/service provider has listed you for non-payment and this has resulted in a bad debt written off or repossession. Enforcement action listings remain on your credit report for 2 years.
B) Default data subjective action listings – this is when a credit/service provider has listed you for late payment, delinquency or absconding. No enforcement action is taken. Default data subjective active listings remain on your credit report for 1 year.
/edit: Blacklisting is either one of the above
PS: im not in the industry, had a blacklisting on my name recently.
pps. you have go to court and challenge a blacklisting or get the service provider to remove it. court takes for ever, if service provider removes it it takes a few days