Hello 'ello, a few new updates to the app:
Shiny new things
- You can now update your card details from the billing page.
- There’s a new ‘Add Data’ button on the home page, where you can manually add-on data or change the settings for when you run out:
No longer broken
- The available allowance now takes previously-used add-on data into account, and may no longer be a nice round number. E.g., if you used 750MB of a 1 GB add-on last month, this month will show your bundle + any referral data + 250 MB.
- The help button/chat menu stopped loading occasionally, but no moar!
Back soon 
- Nick