Primark Retails Assistant interview questions

I got short listed after my online application, then I had an email saying I had a interview and the when that day came first. I got seen by a HR worker who interviewed me then. After that I got a call the morning after saying we would like to offer you a weekend position are you interested so I said yes, but at this time the job was a temporary position to all who applied and then months later they decided who was going to stay on and whose not.