Overdraft minus function?

Also an added bonus would be simple email notifications of user go’s into minus, urging them to top up account.

Hi, it doesn’t matter now, I’ve solved it myself, simply by deleting this code below, lets users go into minus when placing orders.

file is : /user-waller-credit-system/includes/gateway.php
Delete:

/** check to make sure the user has enough credit to make the purchase */
if ($cart_total>$vw_balance)
{
wc_add_notice( __(‘Payment error:‘, ‘woothemes’) . ‘ Insufficient funds. Please purchase more credits or use a different payment method.’, ‘error’ );
return;
}