"Removed from service without accessing support"

After self-referral and attending the triage appointment for IAPT (being a person who has previously been diagnosed with OCD, GAD and PND and medicated in the past), I was referred to group sessions, as the triage practitioner thought this would be a good challenge for me.  I accepted, but stated that I work and did they have evening/weekend or  appointments on the day that I don't work. 

I was told if I could not attend the sessions they assigned to me, then I could rebook or opt for the online course.  I received a letter from Think Wellbeing, inviting me to multiple sessions, which I “must attend”.  These would all require a half day off work for each one, causing more stress as my employer would not consent to this - 6 days of annual leave in total.  

I tried to call - no answer.  I left a message, no response.  I sent the invitation letter back, saying I could not attend as I work.  I was so upset that I had tried to take the initiative myself and recognise my condition was getting worse and I needed help before medication again.  Could I not have a session on the day that I don't work? or evening or do the online course?

I received a letter from NW Boroughs Healthcare, addressed to my GP and cc'd me.  Saying I didn't attend so I'm removed from the service before its even begun.  Thanks a lot NW Boroughs Healthcare Think Wellbeing.  So what do I do now, deal with it alone?  Are they happy they got someone off the waiting list?