I ordered 2 x items through House of Fraser online last Friday...
Today the tiniest package arrived, containing only 1 of the items.
HoF have gone paperless recently, so I checked my emailed receipt/packing slip and apparently both items were delivered (within the same package, i.e. not 1 of 2).
The missing item happens to be a high value electrical with a strong resale market...it would sell quickly on eBay for almost the RRP.
I don't want to be the biggest cynic, but to me this seems glaringly suspect! 
I appreciate human errors happen, but I'm not sure how easy it is to look at a clearly laid out packing slip for 2 x items, and only pick 1...then mark them both as dispatched.
The customer services person left me feeling distinctly uneasy 'we'll look into it...in the meantime we're keeping your money'.
A quick Twitter search showed lots and lots of others with missing items...and more worryingly, some people saying they never got their order and months down the line haven't received a response or refund.
Has anyone else experienced this?