AIT Resource Group interview questions

These people are unprofessional and immature. They show a lot of promise and then go cold. They called me for an up coming position, discussed the salary and asked for a confirmation mail. After that the lady said she will get back to me in few mins. I did not hear from her for a day and I called her, but no response. After 2 days, I called her again and she answered this time and said she will talk to the account manager and call back in 5 mins - that never happened. I understand things change, but how difficult it is to say that the they are not going ahead with me rather than giving a false hope. That tells a lot about the company and the people there.