Apologies if this is in the wrong place, I tried posting in the maternity product section but got no replies and I'm desperate.

Does anyone know where in Brisbane I can get the Spanx Power Mama underwear, or similar maternity undies that go above the belly and midway down the thigh.

I know I can buy online but need somewhere I can physically go and buy them before this weekend as I've had an unexpected invite and need some supportive underwear to wear under a dress, preferably with a boyleg to stop thighs chafing.

Any suggestions would be really appreciated!