I can't stand city link and would be happy to pay a few quid extra for another option.
I lived in a block of flats with a Conciege and CCTV everywhere as well as full audio visual door entry system. Concige calls up and I tell her it's ok to let him in and go to my door and wait. 2 minutes later she calls back, he won't come up to the flat because he was scare of enclosed spaces (the lift) and heights (I was on the top floor).
A few weeks later another delivery, different driver and this time I wasn't in. I come back to find the conciege waiting for me, apparently after she told him I was out and offered to let him go in to card the flat he told her where to shove the card and threw it at her office then walked off. I called up and bithced to be told he wasn't allowed in. When I offered to send them a copy of the tape I was told they would have the package to me later that evening. Never saw the delivery driver again and I used to have a few packages a week.
I could go on suffice to say out of the hundreds of items work sends out each month none of them go CL, TNT are only slightly more expenive and significantly better.