Denying an Expense Report at Line Level

Hello -

i wanted to inquire about the scenario that I've encountered while denying an expense report  using the Travel and Expenses module PeopleSoft Vanilla version ver 9.2 PUM 25.  Basically, the approval (transaction configuration) is setup to route approval at the Line level.  Email notification (Route for Approval) is working fine and that the email will show all the expense lines (although the Submit button in the email is not working).  The approver tries to open the link and the Approval Fluid page is displayed.  The approver will have the option to approve or deny at the line level.  When approver