From ProgSoc Wiki
ProgSoc can accept payment either in person or via Internet transfer. You can also pay via the UTS Union website after you've set up an account there.
Membership for a calendar year costs $5; or $10 for non-UTS students and staff members.
This is basically a matter of turning up to the ProgSoc room at some point when people are there and asking to pay your money. Make sure they write up a receipt for you, or else the fact that you paid may get forgotten. Before you come to the room, it might be an idea to check the webcam to make sure people are actually around.
By Internet Transfer
Using Internet banking, transfer the money to:
The Programmers' Society St George Bank Australia BSB 112 879 A/C 118 075 761
Then, when the system gives you a receipt, fill out the form linked to from this page, including the receipt in the "Receipt text" text box.