Apollo Education Group Senior Software Developer interview questions

One phone interview with the VP, then they scheduled me for a 3 hour interview, an hour later they changed it to a 4 hour, then another hour later they changed it to a 5 hour interview, then a couple of hours later they changed it to a 8 hours interview, so I asked then why they keep changing the time, they tell me that's their process. (What kind of process is that) So I decided not to move forward with the interview, because of their convoluted or lack of process