CreditCard card2 = new CreditCard(2, "american express");
BookForm bookForm1 = new BookForm(1, contactDetails1, 1);
BookForm bookForm2 = new BookForm(2, contactDetails1, 2);
BookForm bookForm3 = new BookForm(3, contactDetails1, 3);
PurchaseForm purchaseForm1 = new PurchaseForm(4, contactDetails1, 400, card1);
PurchaseForm purchaseForm2 = new PurchaseForm(5, contactDetails1, 500, card2);
BookForm bookForm4 = new BookForm(6, contactDetails2, 6);
BookForm bookForm5 = new BookForm(7, contactDetails2, 7);
Collection forms = new ArrayList();