So i have form, the users fill out, moves to a verify page which displays the information entered and calculates the costs, then he is prometed to submit. upon submit, a page open with a notification then this page has a cfheader that referesh after 10 sec. and takes the user to the online payment processor. that all works perfect, the only problem is that the total amount due is displayed in the url, and if he edits this total amount, the online payment processor charges the edited value not the one passed from our site!
How can i do the redirection and send the information so that the user cannot edit it?