Why wouldn’t I just use Amazon Fresh or Ocado or whatever? How do I know the monthly quantities will be right? Is Per Diem cheaper than a typical supermarket? Where do you source the goods from? Are there any delivery fees? How do you avoid cross-contamination? What packaging do you use? Do you offer a refill service? My kitchen is in a right state. For the love of God, can you help me? I have a problem with my order, what do I do? How do I change or cancel my order? What is your return policy? Why does it always rain on me?