Paid for guaranteed 1pm next day delivery for an urgent parcel. The notification said it would be collected from.my home between 08.43 and 12.43. So precise were these times that I missed the small word 'estimated '. Of course noone came within these times and I had an appointment at 2pm so at 1.30 I left a note on the door to say I had waited as long as I could and now needed to pay again at the Post Office for next day delivery. Royal Mail were unsympathetic and told me that the estimated times for collection were not binding and the collection could be made any time up to 4pm. So why the hell give such specific times and why don't they say you will likely need to wait in all day? Sorry excuse for a service. I'll never use them again.