Argos Customer Advisor interview questions

Rang me about a month after I applied several times until I eventually decided to go for the interview. Interview was simple, but some may find it intimidating. Had to go onto the shop floor with a tablet that had all the companies products on it, and ask customers if they needed help etc. All the time the manager was watching me. Was meant to take 15mins I ended up spending 30-45mins on the shop floor due to a difficult customer- this probably worked to my advantage. then went into an office and had to answer some questions from a booklet which were picked by the manager at random. this lasted maybe 5-10 mins. about 4 days later i was contacted to say i had the job.