there is no such thing as "bonus UAI points"
ur UAI is the UAI that uac assigns you based on your marks. Your UAI is a rank. This is not changed by ANYTHING.
What you may be referring to is the EAS scheme where univesities offer the same courses with LOWER UAI CUTOFFS (up to 5 points lower than their corresponding CSP courses) for those who have had their hsc year severly affected by hardships such as parental deaths, divorces, severe sickness etc.
EDIT:
certain univerities may assign you "bonus uai points" for entry; ur UAI will remain the same for the official record - but they will consider your application as if u had a higher UAI, making your UAI more competitive for course entry. These "bonus" points vary from unviersity to university, and DO NOT IMPACT ON YOUR REAL UAI == the universities simply consider your application as if u did have a higher uai.
For UTS your uai can be 10 marks below the main round cutoffs.
For UNSW they give "bonus points" in the consideration process.
go here for more info:
http://www.uac.edu.au/pubs/pdf/easbook-mono.pdf
Exphate, they are not too late. The applications close 30th November. Make sure u do it by this date, since UNSW and UTS both DO
NOT ACCEPT late applications.