Has anyone here done mocks from this company called *** Advertising Censored ***? Never heard of them - wondering if anyone here knows more?

I’d generally avoid anything called “advertising censored”....

In all seriousness, there are many Mocks out there.
If you want to use one, there should be information about its structure so you can pick one that fits the sort of papers/exam your DC is sitting.

Mocks are not vital, but for parents who DIY they may feel it’s worth booking a mock (or occasionally two) so that their child is familiar with sitting a timed test in a big hall with lots of other children.

OP - our forum software automatically removes the name of this organisation