I had a medical test that needed to be done at midnight, at home, then posted to the lab the next day. It needed to arrive the day after, or it wouldn't be worth analysing. The first test kit sent to me from my hospital consultant, via the Royal Mail 24-hour service, never arrived. The second turned up three days late, despite the Royal Mail app telling me it was arriving on the prior two days. I did the test, I paid for 24 hour track/trace/signed delivery (using my own contact details for the tracking), posted it the next morning..... then nothing. Nothing on the app, other than a timestamp from a couple of hours later when I assume they emptied the postbox. For the following 28 hours their tracking system said they were still waiting for it from the sender (me). Eventually, at the end of the day that it was supposed to arrive at the destination, I got a text from RM saying they'd just received it from the sender. I suppose they thought the person tracking it was the recipient, who would know no better and think that the sender hadn't posted it. Royal Mail now say they "aim" to deliver it tomorrow. But tomorrow is too late, it HAD to be there today. Needless to say I had no help from RM when I phoned them or tried to get a reply on their Twitter help feed. I'm now faced with going through the whole palaver again, asking my consultant to send me another kit, waiting for however many days to see if it turns up, and then trying to send the sample to the lab which sadly is nowhere near where I live. I waited in for three days recently for an Amazon item. It seems they now use Royal Mail for some of their own deliveries. I was told I had to show proof of age otherwise it couldn't be handed over. I went through the same dance as I did with the medical test; Amazon told me it was due to arrive that day, RM gave me a timeslot, I waited until 9pm, nothing happened. The same the next day. The following day, Sunday, no notification from RM or Amazon, and I had a rude early morning awakening. This company must surely be in meltdown. They haven't got a clue.