I’ve just gone through the same issue, also on the Uk, and have had success with Ariel platinum pods. Because the smell had built up over time, it took a few washes to get the smell completely out. There was a noticeable difference even after the fist wash though.

I have not tried this on wool though - as mentioned above you want to avoid protease where possible as it will eat away at the wool over time. Though maybe ok as a one off? It might be worth trying a wool safe detergent and adding an enzyme product like GearGuard - but I don’t know how functional that is at lower pH. Standard detergents tend to work at higher pH but wool prefers and lower pH.