I am trying to create a simple payment form allowing users to purchase multiple quantities of one item with an amount value of $139. I've set the amount of the form to $139 and created a custom field pr_quantity. I followed the Payment Form Tutorial to configure the custom field:
Type : Textbox
Fee Field: set to Yes .
Fee Formula : [FORM_AMOUNT]*[FIELD_VALUE]
Didn't work. I submitted a support ticket and in the meantime have scoured the Payment Form Forums for any help I could find. I tried all variations that have been recommended by the Payment Form moderator and all would not work - they either resulted in a 0.00 amount or an amount that added an additional $139.
I found a post that said this formula [FORM_AMOUNT]*[FIELD_VALUE]-[FORM_AMOUNT] worked, so I tried that. It did not work for me. I was supposed to have this form up and running 2 days ago. It seemed so simple. I can't believe it is this hard since all the reviews were so good. Since I can't get the form to work for such a simple function, I'm going to have to purchase another payment extension unless I can find the correct fee formula syntax. I have to get this up and working correctly.tomorrow. Any help would really be appreciated.
