Some of the ‘support and guidance’ that has been on offer by mermaids:
Pushing ‘affirmation only’ medical approach when the NHS evidence based approach is watchful waiting (up 90% of children accept their sex after puberty)
Pushing the use of puberty blocking drugs as ‘totally reversible pause button’ which have harmful Long term side effects like locking children into transitioning, increasing thoughts of self-harm, sterility, lack of sexual development, lowering of IQ. The health regulations authority have ruled these powerful drugs which impact on the development of every system in the body should not be sold as a a reversible pause button. The NHS guidance states that the long term effects are not known.
Referring children to Drs Webberley to access the above drugs and cross sex hormones, the Drs Webberley have been struck off by the GMC for this.
Publishing very confidential client information on a publically accessible website (which was accessed by the public)
Training schools to tell teachers to affirm only (even though the NHS says do not socially transition children until they have been seen by GIDS) and for teachers to keep this secret from parents flying in the face of safeguarding.
Encouraging children to enter secret online chats with adults without parents knowledge
Training schools to illegally discriminate against girls by presenting a distorted version of the Equality Act 2010.
Training schools in enforcing regressive sex stereotypes (to be transgender relies on sex stereotypes) such as girls wear pink dresses and boys play football.
A Non-trans staff member (volunteer?) took a transwoman to court for transphobic hate crime - the case was thrown out as no evidence and the judge criticised the CPS for ever taking it to court.
I could go on. This is all in the public sphere if you actually care to look.