OpenClassrooms Communication Executive interview questions

I had a call with HR which went well. I was told that I would get a second interview with future colleagues this time. After discussion around the timings, no one ever got back to me with an email or a call. I was then, two weeks later, sent an automatic email to tell me that the position had been filled. On my side of things, this translates a lack of respect for candidates and will definitely not apply there in the future.