Hide item quantity for single product in Cart

Site URL: https://www.openingnights.co.uk/

https://www.openingnights.co.uk/

Hi,

I'm looking to hide a single items quantity once in the cart. It will only ever be the 'Ticket Protection' product as shown in the screenshot (Circled).

If it helps, this item is in a store of it own away from all other products?

Is this even possible? Any help is greatly appreciated 

(The ability to add 'Ticket Protection' is here: https://www.openingnights.co.uk/tickets/up/ticket-protection)

Add to Design > Custom CSS

/* Cart page quantity */
div.item-quantity {
    opacity: 0;
}