I recently started getting errors when customers attempt to use coupon codes. Basically Linkpoint declines the card with the following error:

SGS-002301: Charge total must be the sum of subtotal, tax, value added tax, and shipping.

I haven't had this happening in the past but it seems to be an issue all of a sudden. I do not use GoDaddy and it used to work just fine.

Any ideas?

Thanks,
Jason