Professionalism

I’m so disappointed with this company I thought it was a well professional company but no I was wrong. On the 2nd of April I got an email & Whatsaap being invited for an interview on the 9th of April,while I was excited and preparing myself,on the 8th I got another email & Whatsaap saying that they have identified a suitable candidate for the position (Call centre agent). I’m unemployed and was looking forward to it. Am just trying to say next time they should work their things professionally,they should be sure about their story before calling for interviews then cancel at the last minute.