Hello, dear GradCafe fellows!
Recently I have received a letter with conditional admission offer. Before applying to that school, I contacted the POI there who was very enthusiastic and positive, and encouraged me to apply. Professor immediately arranged an interview via Skype and asked to keep him/her in the loop. POI was always kind and supportive enough to answer my questions on the same day, and, well, we had a constant contact with each other for a month or so. So when I have got a conditional offer (the only condition is to find a supervisor), I though I broke in that grad school. I immediately emailed my POI to share the news and ask if s/he will be able to accept me as a grad student into the research group. However, POI has never replied. I wrote 2 emails (1 per week) afterwards, but there is still no answer. I am going to accept an offer from other school; I believe that POI's behaviour is at least unprofessional.
Honestly, I don't know what to think. Is that a common practice in American academia? Any suggestions? Eager to hear your thoughts. Thanks in advance.