Spiking out landing page
Tweeking ScrollView to stop keyboard minimise display error
Before calculating, retrieve account id from device. Or create & store locally a GUID (customerReference)
Mortgage calculations can be performs from the App!!!

If user is logged in, sends AccountId with calculation request.
If not logged in, creates GUID (customerReference) and stores it locally
so back-end will know its the same customer performing requests.