I would certainly ask more about your job role, the store has quite a range of customer services including pet care advice and i think some have grooming services. It is possible they are looking for people for stock control, pricing and general housekeeping plus till duties, but potentially there may be the opportunity to train to specalise in the more animal care related departments. They probably also cascade down product training to all their staff which would be very interesting, you'll learn alot about per care in general and also the products the store sells and how to recommend them. I would imagine they also have products that you have to upsell at the till point via customer conversations, this will likely be something the store puts alot of emphasis on and you would likely be monitored on your percentage, it's modern retail and very focused on adding value to a cutomers visit by offering the correct informed advice and add-on sales that they didn;lt realise they wanted,