Dear yellow

I have little problem with the Simple SEO URL

I have some products with manufacturers name contain "&" and "-"
for example "X&Y" and "X-game"
if using the manufacturer side box to sort those items, the url display like this:

For manufacturer "X&Y" will display: www.mydomain.com/shop/x
how to change it back to www.mydomain.com/shop/manufacturer/x-y

For manufacturer "X-game" will display: www.mydomain.com/shop/game

how to change it back to www.mydomain.com/shop/manufacturer/x-game

thx