Even though they are widely available, and given away on some car mag covers. Ironically they are for showroom display only and must not be used on the road. Just like those fancy style number plates, they are also illegal on the open road.
If it's about an item bought, go into your account, select purchase history, click the item with problem and choose from menu your reply. Go from there.
It's not that simple, it depends where you live, what job you have, the cars engine size and trim level. So to compare with someone else will give you a false price.
Sorry to be so blunt, but you will have to get a quote yourself.