Signature error with Paybox – _wpcf7_* query strings

Hi there,

I have ‘Paybox WooCommerce Payment Gateway’ plugin for adding Paybox to WooCommerce payment gateways.

When Paybox return order confirmation, i have this on WooCommerce order notes ( i replaced private datas with * ) :

Signature refusée.
IP de retour Paybox : **.***.***.**
order=***&erreur=00000&carte=E_CARD&numauto=*****&numtrans=********&numabo=0&montantbanque=***
Signature PayBox : *************************************************************************************************************&_wpcf7_is_ajax_call=1&_wpcf7=10&_wpcf7_request_ver=1465039759558

So signature are not accepted because it should be last string on return response. Why WPCF add this queries here ?

Thanks in advance,

Anthem0n.

https://www.ads-software.com/plugins/contact-form-7/