I've done some digging around in my Peckris PMs (not in Peckris 2, I had forgotten I was a different user back then!). Apparently the packets were all sent Recorded delivery (probably by mutual agreement?) and delivered without my having to sign for them. The one that went astray was signed for as "Peckris" (which is how I'd asked you to address it) but I would have used my real name - which the postman knows - if it was me who signed for it.
it was nearly a month before I chased it up with you - there was a good reason for the delay but I wouldn't disclose anything from our PMs. You told me you'd posted it several weeks before and let me have the tracking number, and you were kind enough to make enquiries yourself with the PO. Unfortunately, the delay meant it was too late to raise a tracking enquiry which is why I never took it any further.
Anyway, this is all getting a bit picky, and I have no criticisms of what you did. I'd be happy to let sleeping dogs lie, or we could move the discussion to PM not that it would bear fruit sadly.