Thanks! I applied in December and got first invitation email by the end of March with one slot available for beginning of April which was a no go, and then kept receiving new invitations every month, however 0 slots available all the time. Then booked a slot in July finally. So it changed to Pending scheduled interview after 3 months I would say and I was able to book a slot 7 months after applying. But I believe they now have even more applications, so just be patient. They also increased the number of people attending the assessment, now being between 30 and 50 people.