I have the stand alone Breakout Garden version of that display.
This is what I went through to get mine working.
Keep in mind that the one on the Pirate Audio may be wired up differently (use different GPIO pins) than the Breakout Garden setup. You may have to edit the examples to get them to work. Namely the backlight pin used and CE pin used.
On the Pirate Audio setup it uses BCM 13 physical pin 33 for the backlight and BCM 8 physical pin 24 as the CS (SPI0 CE0)