We also have a town home at Gold Coast. GC is listed as a Setar hot spot and wifi is available there through Setar. I never buy the card - instead I just open my browser and am brought to the Setar page where, with a credit card, I can purchase the time that I want. You can purchase an hour, a day, a week, a month, etc. They also sell the wifi cards in the management office at GC if you prefer not to use a credit card online.
The only problem is as of late, the connectivity to the wifi has been spotty for us. We often had to take the laptop up to the high rise area to access the internet from there. We now have an antenna installed right in our house, a network specifically for our home has been created, and you can access it with a password. We are anxious to find out on our next trip there if this has improved the connectivity problem.
We know that others at GC do not have the connectivity problem we have, but think it could perhaps be because of the location of our unit in the development.
But long story short, wifi is available at Gold Coast through Setar at their normal rates.