Was already using the free version. Tried to upgrade but every time I tried creating a new account with my existing email, and input my password, it simply opens the free account, with no option to open the premium version unless I pay to upgrade.
I tried redownloading and reinstalling the app several times, with the same results.
Also tried creating a new account, using a different email and password. But all it did was create another free account with a 30 trial of the premium version.
I noticed others on this blog are having the same issues.
There is an option in the help menu of the app that gives a link to input a code. Maybe that would be the best option to resolve this issue