Standard Chartered Bank Senior Software Engineer interview questions

I was interviewed for Senior Developer (AVP) role, Singapore location. 1st Round - Screening interview Basic questions were asked - What is my role in current company, what I do, why I am leaving my current company, etc 2nd Round - Technical hand-on Interview (1 hr) (1) Implement Fibonacci Series and questions related to it, test cases (2) How to implement program to fill color in an uneven shape, something how we do in Paint software 3rd Round - Manager Round Some kafka questions, and general questions HR asked to upload few documents and fill form. After one week HR round was taken. 4th Round - HR discussion HR asked about salary details and expectations. They told that it will take 2 weeks to release offer letter once they get all internal approvals. After one week, HR informed that one more technical round is required and scheduled in next 2 days. Technical Round -> The interviewer was manager from another team and told that I will be hired for new team. He asked general questions and few technical questions (Completable Future, multithreading, Kafka) After 2 days HR confirmed that I have cleared interview and the offer letter will be released in next 2 weeks due to internal approvals. I got job offer from one another company and asked SC hr if they can expedite the approval process. Every time I enquired, HR told to wait max one more day. After waiting for 1 more week, I accepted other company offer and SC HR did not came back even after 2 weeks. Such an unprofessional HR team, it wasted so much time.