ServiceNow Mobile UI/User Experience Designer interview questions

One of the designers called me to schedule a phone interview with her and another senior designer from abroad. The phone interview lasted about 30-40 minutes. The interview didn't feel so professional- like it' s their first time doing this. At the end, the two ladies told me they will stay in touch to let me know if the process will continue. They didn't call/send an email...nothing.. So I think a company that respects itself should let candidates know they were not accepted for the job. I gave 40 minutes of my time to talk to you, so you can take a minute to send an email. So disrespectful and unprofessional!! This says a lot about the company's culture and treatment to employees... so i'm glad not to work there :)