My "next day" parcel took three days to collect, despite it being booked before 12:00 on a Monday. I understand this may have been due to problems with the carrier (TNT's) computer systems, which was fair enough, but I didn't like the fact that Interparcel charge you 10p a minute just to speak to their customer service agents, and that their phone lines close at 17:00, before the latest potential collection time - this guaranteed a day's delay for each failed collection when it might have been possible to resolve the issue direct with TNT on the first day. The alternative live chat (available until 20:00) worked after two tries, and the agent Becky was helpful and sympathetic, but the process isn't as efficient as speaking to someone on the phone.