Any truth to Psychiatry-UK’s 12 week diagnosis wait list?

Psychiatry-UK are refusing to advise on wait times at the moment over the phone which is understandable, but ADHD UK state they’re told the current wait list for diagnosis is 12 weeks.

Does anyone know if there’s any truth to this? I originally was going to be referred to ADHD360 but my doctor seemed to prefer Psychiatry UK so I went with them. ADHD360’s wait list was 14 months when I was referred in October, and it’s now 8 weeks (reported by ADHD UK and confirmed by ADHD360). I’m just wondering if I’ve signed myself up for a much longer wait?

Thanks!