Auriga payment with VAT module

Sounds like some kind of configuration problem. The module adds up all the line items and sends the total to Auriga, VAT isn't (and IIRC can't be) reported separately to the payment gateway.

I'm not sure, but I wouldn't manually wipe anything from the DB.

I'm new to Ubercart, but I'm guessing the problem is in the loop that starts on line 196 in uc_auriga.module

  // Compile total amount
  foreach ($order->line_items as $item) {
    $amount = $amount + $item['amount'];
  }
  $data['Amount'] = ($amount * 100); // Auriga wants the amount in ören/cents

The $item['amount'] doesn't seem safe to just add up. In my case it contained subtotal including taxes but excluding shipping + taxes + shipping excluding taxes. So taxes where added twice on the items.

Since the amount already is calculated and exists in the $order object as $order->order_total you could probably just change the code above to the following:

  $data['Amount'] = ($order->order_total * 100); // Auriga wants the amount in ören/cents

Also, I haven't tried this, but maybe you could use: uc_order_get_total($order) - it also seems to return the correct amount.