fail - the sign up process
When sending a fax after paying via iTunes, the app requires you set up an account.
If you use an email to do so (stay the F# away from my Facebook, linkdin etc - nice try for 3rd party data mining) the app goes into a series of loops between prompting to signup for an account and signing in.
Will be deleting this now.
akruse about
Send & Receive Fax App- iFax, v1.9.2