Stripe runs at the start not at submitting a Form

[mvdw310]

Dear all,

Is there a possibility to run Stripe plugin at submit and not at opening a form.
now tripe takes all the elements at opening a form, but i wish to collect the elements at submitting the form so i can do calculation for the costs.

With Jdump i see the everything is working, but only at the opening of a form.

i hope someone can help solve this.

Grtz Manfred