Adyen Software Developer interview questions

I applied the position which aligns with my experience via Adyen's application platform with referral program. My referrer answered their questions carefully, however then I got rejection via email without feedback. I was expecting from them to be clear what's the reason.

Pretty standard in tech company in NL. This what was the recruiter told me: - Apply through job portal - Recruiter call - Tech interviews - Offer I failed after some interviews and no feedback despite asking