SEF - Manifestação de interesse

I started my MI last November 2018, received approval on December 2018 but since then I couldn´t book an appointment online with SEF. When I submitted the process, CLAIM informed me that SEF will be calling me for my appointment, now they are saying I have to check the site daily and wait for my LUCK to get an appointment. What´s disappointing about the entire process is when you call SEF or CLAIM everyone would just say try and check it everyday and hope that you have the luck to get the appointment. I cannot believe that people working in these offices would expect applicants to just base their appointments on Luck and what´s worst is no one seem to know who is responsible nor could clear address the issue as to when this will be resolved. This has hindered me from fully functioning with my job since I cannot leave the country until this issue is resolved.