Domtar SAP Analyst interview questions

Informed to use skype, then their Skype not working, so change to phone, feel very bad experience, they don't listen. The interviewers seems not prepare, not professional at all, if they don't want give interview, should give information to cancel it, instead letting us having hope and feel so frustrated after that interview, they don't let me finish answer and directly say you don't know this bla bla... very bad experience.