You can find and download a PDF version of your monthly statements within the Moves app!
Step 1:
Open your app to the "Cash" tab at the bottom
Step 2:
Click into the "Account Details" button shown below
Step 3:
Click into the desired monthly statement under the "Statements" title shown below to download PDF versions of your bank statement!
Step 4:
For iOS users: Once the statement opens, find the share button 
to save it to your iPhone, files as a PDF.
For Android users: Once the statement opens, click the "Download" button on the top right of the screen to save to your Google drive as a PDF.