Conducted terribly in an unprofessional manner. Perhaps it could have been even far worse if it even went through at all...
I was asked to book a slot online on Leah's calendar and was informed that there will be call. Never was it mentioned that it will be a conference call across a different timezone (13hours) as the standard procedure is to do local calls and common courtesy to be informed in advance that it is going to be a conference call.
I attended the slot that is 13 hours ahead, realised that it is wrong and waited 13 hours later as per scheduled. HR dropped an email that she had forgotten to give me the number to call in, the ID code for the conference and asked me to rescheduled the following week.
I did so again but was placed on hold while waiting for the HR to call in (15 mins of waiting) and I finally dropped the conference call out of pure disappointment. If this can happen at the entry stage, I shudder to think what is next. Do reconsider about joining such a company.