I purchased AnyTrans for iOS for 49.99 two months ago.  I then registered it with the license cod they sent me.  Two days ago I was locked out of AnyTrans.  I saw a message stating that my license code was locked for security purposes.   When I looked up my account history, it said my account was never activated.  So, it appears that I was using the demo version, which suddenly expired.  This has happened 3 times with this app.  What is going on?