From what i’ve been told they are both accredited courses, simply by different bodies. The MIAS one is accredited by the ABC awards board that are affiliated by NVQ, all these abbreviations!
The MIAS one i’ve just done is accepted by schools, MOD and local authorities, i know this because all of those were on my last course! there are varying levels though and are age dependant (kids or adults).
I’d give the guy Ray a ring, he won’t bull shit you and will give you honest advice, even if the course you need isn’t what he offers. i asked what i should do next and he basically said that unless i was wanting to take kids out i wouldn’t need much else, i think just to add to my own CV i will do my WGL award then my level 3 (i’ve just done 2)