Thanks for the response. I was thinking something along these lines. I got this working by adding it to an HTML block above the footer so it was above the next record arrows and not below it.
I do have one problem now. For some reason if I now click the Back button the "Insert & Update acknowledgment" is now being sent via email saying the record is Approved even though I clicked the back button. I tested the Update record and that still works normally.
See screenshot on how the back button is now on the left