"appointment system is broken"

my son has been under Alder Hey since he was 2 with developmental issues, and was recently diagnosed as having ASD. I cannot fault any of the medical staff. All our contact with them has been empathic, inclusive and valuable. The main and significant problem with this trust is chronic under staffing which leads to repeated break downs in outpatient care. I cannot recall a single appointment that hasnt be cancelled by the hospital and rearranged without any consultation or choice with us. The latest appointment was rearranged by the hospital five times in a row. The venue was changed 3 times. Every single appointment to see a consultant in the community has been delayed. They were supposed to be 6 monthly, however they are usually 12 monthly or longer apart. Follow up appointments depend on other checks being done however these appointments are also subject to cancellation and rearrangement, causing a severe knock on effect. My child is still very young. He faces his own developmental challenges, which are compounded by unnecessary and inefficient faults in the appointment system. I appreciate staff retire or go off sick but one has to wonder why this issue affects every clinic. Please Alder Hey, sort this out, it is no joke my child is missing out on much needed support. He is not a file on your shelf, he is a much loved individual who we only want the best for