Positive information can consist of a payment history, or a reward
loaded onto a tenant's credit profile.
This information should be used to assess the prospective tenant's future
behaviour and credit worthiness.
Ultimately it is up to the landlord to decide whether to take on a
tenant or not - different landlords may have different appetites for risk,
meaning that one landlord may take on a tenant that another would decline, and
vice versa.
The other points to consider when interpreting negative data is the
date of the information, how many negative records vs positive records there
are, and the Rand amount of the positive information.