How am i best getting the mould out of this carpet

[jameslpool]

Hi, we had out shower tray, enclosure and tiles replaced about a year ago due to ongoing issues with cracks in tiles and a crack in the shower tray.

We got that all sorted and is fine (i am assuming this isn't from the new shower)

Below as you can see on the pic, there is a patch of mould, which is dry.

There was a cabinet here, so think that’s why we had never seen it until now.

I am just wondering how best to clean it all, and if there’s anything i should be putting on it specifically?

Thanks
James

 

[Wayners]

Carpet cleaner spray or washing machine powder or liquid with warm water.
Brush in.
Wet and dry vac out then let it dry