I subscribed to SplashID Pro on my iPhone/iPad/iPod, but it still says I'm not

I subscribed to SplashID Pro on my iPhone/iPad/iPod, but it still says I'm not

It seems iTunes apparently failed to subscribe you properly on our system. We can do it manually through our own system. We apologize for the inconvenience caused. Please contact us at account@splashdata.com with the subject: "iTunes failed to subscribe me." and we will help you ASAP. For a faster and complete resolution, please send proof you pai