On all of our mobile devices if we want to amend the template when sending an invoice or estimate it will not let us work on it and instead always sends us to the bottom?

Are you referring to custom form templates or recurring templates? Please note that the QuickBooks Online mobile app doesn't support editing templates directly. To customize your invoice or estimate templates, you'll need to log in to QuickBooks Online using a web browser.

However, if you're editing an individual invoice or estimate (not a template) in the app and the screen keeps jumping to the bottom, check this article for troubleshooting steps: Fix common issues in the QuickBooks mobile app.

If you are accessing your account through a mobile web browser, it may be due to cached data. Refresh the page, then log out and sign back in to see if that resolves the issue.

Feel free to return if you have follow-up questions.