Is it a nationally recognised organisation? Anyone could call theirselves that.....
I have tried, more than once, to find a website for this organisation, and so far, I have failed. There are one or two with similar names, but none with that exact name. However, I did find a certificate, issued by an organisation with that exact name. It has links with Pro-Chem, which I believe is a proper firm. (I suppose it would help to boost the sale of their own products.) For anyone interested, the URL is: https://wizardcleaning.co.uk/wp-content/uploads/2014/12/ProChemCarpet.pdf
My own view is that it does not have much weight at all — it just looks good on a card. At least, it would seem that it has not just been made up, to impress.
Regards to all,
L.L.