I have used Ziffit before without any significant problems. This latest time, however, was very frustrating. I spent many hours sorting through an elderly relative's book collection and by the end of the day had had 45+ items accepted with a value of about £10.50. As soon as I clicked to complete the trade, a message appeared that some items were no longer acceptable (even from as little as 15 minutes prior), and the value was reduced to under £9. I then had to trawl through the list again to identify which ones had suddenly been rejected. In case it had been a glitch, I re-entered the rejected ones, and some were accepted again, but when I tried to complete the trade once more, even more items were inexplicably removed, so the final trade was reduced to 26 items valuing £8.07. When I then chose a date for collection I opted for 2nd Jan because it was being offered even though it was a bank holiday. I then received a message saying it was scheduled for 3rd Jan, a day I would not be at home. I have rescheduled collection for today and hope that the rest of the process and receipt of payment with be more straightforward!