First it equips and shows correctly on both IOS and Android devices.
Second I have already sent a request to Customer service about this. This is more of a warning to PC players, The shirt doesn't even show up in the PC version of the Pro shop.. By that I mean it shows as an empty window and when equipped all you see is the male avatar's naked chest, The female avatar has a bra on.
The only thing that doesn't make it even worse is that it was free.(Edit) ]After downloading the update the snake shirt works correctly on PC too now