Just a separate point of view here to mix it up a bit...

M is owned by Richmont Group. As any company I've worked with (and most FSTE companies as well) your sub companies are always run at a loss - that way you pay less taxes...

I'm not overly concerned on a set of Companies House accounts. Most sub brands are always operated at a loss. Look at Starbucks.

Merely accounting practices??

M Customer since 1991...
2 Channel: 818v3 into 8000SE's running Roon on a Nucleus One with QNAP TVS-871-i7-16G 8 Bay NAS
Cinema: 861v8, 2 x M6's, 7200HCSE + DSW
Office: Explorer 2 into Shure SE846's
Kitchen: AD88
Other Stuff: Philips 77" 4k OLED Ambilight TV. Hue Lighting System, ATV 4K & a lot of Apple stuff...