looks more like a very bad luck, if you are not rushing with purchase its generally better wait for some promo / GB as all trusted vendors do them often (see
@dionysos vendors list)
If they give you something extra or partly refund you im not so sure, because during the purchase you did agree on that price, but its true they should inform you about the new promo next day (if they knew about it at that time).
In your situation I would also be angry, but it all needs to be communicated thru your rep (which one? Irene?)