Hi,
In the HikaShop controller (components/com_hikashop/controllers/checkout.php) you will find a function " _readPayment ".
This function read the payment data and it also read the CC data.
if(!empty($paymentData->ask_cc)){
$paymentClass = hikashop_get('class.payment');
if(!$paymentClass->readCC()){
return false;
}
}
If the readCC return that a Credit Card has been fill, the function return false (so it does not authorize the checkout to go further).
You have to remove this return if you want to let your HikaShop continue.
Regards,