This is a very simple Chrome extension that hides the Rapport reminder pop-ups on the HSBC Business Banking login page.
It's a couple of lines of CSS which hide the pop-up overlays.
To install this extension, download the files of this repository, un-zip them and save them somewhere suitable.
Then open Chrome and go to the Extensions page. Tick the Developer mode checkbox at the top right of the page and then select the Load unpacked extensions... button. Browse to where you have saved the extension's directory and select it. You should now see the extension added to the list and the Rapport pop-ups should be no more.
Go forth and rejoice.