Bloomberg Software Developer interview questions

After submit the application on the website, it takes about 3 weeks to process. Then get an email to inform that there is a phone interview. Given a link to a third party website, which the interviewer and the candidate can share a screen. The interviewer give questions and then the candidate type the answer and explain it.

The interview was smooth and interesting. The interviewer was interested and asked relevant questions. After the telephone interview they invited me to an on-site interview to London, which they cancelled a day later, without apologising. I find this kind of behaviour disrespectful towards candidates.