"Forgot to submit a referral"

I attended a GP appointment in September 2023, requesting an ADHD assessment through Right to Choose. This has been impacting negatively on my work and personal life for many years. I submitted a written letter in the addition to the necessary questionnaire, prior to seeing a GP in person. I was informed that the referral would be made. 3 months later, I requested an update from the GP. I received the following message: 'I've check with the secretary, and apologies - the referral wasn't made. Please could you fill in X survey and book a routine appointment'.

I am so disheartened, and feel extremely let down by the practise.