Congratulations on your interview. You obviously assembled a fabulous CV!
At Farmfoods you will be working as part of a larger team, so emphasise yourability to work as part of a time while still having the initiative to work alone.
Customer service is important in your role, so experience of this is preferred. If you have no experience, fear not, they already know this. If asked about customer service questions, think about what service you would like to receive if you were in the scenario.
More importantly, just relax and ‘enjoy’ your interview if possible. I wish you the best of luck!