E80 Group Solution Delivery Manager interview questions

Received a call out of the blue on Whatsapp which I couldn't answer and later a message (always on whatsapp), for a role I applied to two months before. I sent a message after an hour saying I was available for the whole day from then on, but received no answer. After 4 days I got another message asking me when I was available, I replied straight away and no answer again. After one week (!) received another message, I replied confirming the slot proposed asking to send a calendar to confirm, they did. We had the interview which went well from my perspective, despite some really awkward questions I received and never heard from them again. It's been 2 months now. The recruiter not once apologized for her behavior by the way. Terrible experience.