Rediriger l'acheteur vers la page de paiement

<form method="POST" action="https://scelliuspaiement.labanquepostale.fr/vads-payment/">
<input type="hidden" name="vads_action_mode" value="INTERACTIVE" /> 
<input type="hidden" name="vads_amount" value="30000" /> 
<input type="hidden" name="vads_currency" value="978" />
<input type="hidden" name="vads_cust_id" value="Client" />
<input type="hidden" name="vads_cust_status" value="PRIVATE" />
<input type="hidden" name="vads_cust_first_name" value="Jeanne" />
<input type="hidden" name="vads_cust_last_name" value="Gauthier" />
<input type="hidden" name="vads_cust_phone" value="0123456789" />
<input type="hidden" name="vads_cust_cell_phone" value="0612345678" />
<input type="hidden" name="vads_cust_email" value="jg@example.net" />
<input type="hidden" name="vads_cust_address_number" value="109" />
<input type="hidden" name="vads_cust_address" value="rue de l'innovation" />
<input type="hidden" name="vads_cust_city" value="Labège" />
<input type="hidden" name="vads_cust_country" value="FR" />
<input type="hidden" name="vads_cust_title" value="MME" />
<input type="hidden" name="vads_cust_zip" value="31670" />
<input type="hidden" name="vads_ctx_mode" value="TEST" />
<input type="hidden" name="vads_order_id" value="CMD012859" />
<input type="hidden" name="vads_page_action" value="PAYMENT" />
<input type="hidden" name="vads_payment_cards" value="FULLCB3X" />
<input type="hidden" name="vads_payment_config" value="SINGLE" />
<input type="hidden" name="vads_ship_to_first_name" value="Jeanne" />
<input type="hidden" name="vads_ship_to_last_name" value="Gauthier" />
<input type="hidden" name="vads_ship_to_phone_num" value="0612345678" />
<input type="hidden" name="vads_ship_to_status" value="PRIVATE" />
<input type="hidden" name="vads_ship_to_street_number" value="109" />
<input type="hidden" name="vads_ship_to_street" value="Rue de l'innovation" />
<input type="hidden" name="vads_ship_to_zip" value="31670" />
<input type="hidden" name="vads_ship_to_city" value="Labège" />
<input type="hidden" name="vads_ship_to_country" value="FR" />
<input type="hidden" name="vads_site_id" value="12345678" /> 
<input type="hidden" name="vads_trans_date" value="20200326101407" /> 
<input type="hidden" name="vads_trans_id" value="362812" /> 
<input type="hidden" name="vads_version" value="V2" />
<input type="hidden" name="signature" value="NM25DPLKEbtGEHCDHn8MBT4ki6aJI/ODaWhCzCnAfvY="/>
<input type="submit" name="payer" value="Payer"/>
</form>