The mobile gold shop both for iOS and for Android shows wrong information at the moment.
The 1,99€ package (Package A) is displayed for 99,99$ instead, and the gold amount is also wrong.
In some rare cases you are able to click on the 99,99$ package and then you are forwarded to the purchase screen for the 1,99€ package.
We are trying to fix it as soon as possible, and apologize for the inconvenience.
Your Rail Nation team