Argos Assistant interview questions

I was called in for an interview one day and given a time, i was on time, the interviewer wasn't however. The interview went well, I was only asked one question. The interview began vaguely telling me out bringing in documents in a couple days, but kept saying " if i get the job" , so I wasn't sure what he was actually saying. The day came by when I was supposedly supposed to go in with my documents and I turned up in the afternoon because as I said, the interviewer was vague and hadn't given me a time. This is after trying to get hold of the company numerous times over the phone. I then took it upon myself to go back again with my documents the following day in which the manager had a go at me in front of customers about how im not being hired now because i was given a time and i didnt show up. The interviewer stood their and nodded when he knew I wasn't given a time. Why would I not show up if i wanted the job, why would i have been calling. Overall the workers were not professional and quite rude.