jamiemoney

At this time we’ve processed 12 bookings with that code in place and they have worked perfectly.

FYI, in class-s4wc_gateway.php I’ve replaced and tested:

if ( WC()->cart->total * 100 < 50 ) {
     return false;
}

With:

if ( is_checkout_pay_page() ) {
     $order_key = urldecode( $_GET['key'] );
     $order_id  = absint( get_query_var( 'order-pay' ) );
     $order     = new WC_Order( $order_id );

     if ( $order->id == $order_id && $order->order_key == $order_key && $order->get_total() * 100 < 50) {
          return false;
     }
}
elseif ( WC()->cart->total * 100 < 50 ) {
     return false;
}