River Island interview questions

Applied for temporary position (about a month). Applied online and was invited for a 'recruitment event' about a month after applying, which was in two weeks. Turned up to the interview, there were about 15 people there. No one-on-one interviews, just a group one in which we had to talk about what we were wearing, what was good customer service, pick an outfit for a person the chose and explain it.

I applied for a weekend position online. The process took two months; one month to invite me to the interview and the interview was in another months time. I turn up to the interview only to hear that all the weekend positions have been taken because that was their last recruitment event. They asked me if they could put me down for two weekdays, I said no as I am a college student. She then said she couldn't interview me and that was that. They were clearly unorganised as I applied two months ago, so I should of been invited to an earlier interview. I specifically applied for a weekend job, the interviewer did not refer to my online application what so ever. Really disappointed, get your act together River Island.