I had one purchase vanish about two weeks ago. It's never happened before. I only order domestic. No information from anyone about it and I was refunded from the vendor. I tried a vendor I used to use and trust on AG and it was posted NDD but I haven't recieved anything. I think someone I'd stealing my post... how can I stop this from happening and is this even likely?
Although I can't give advice, I will say I had a similar problem.
I purchased (legally of course) two tins of Zippo lighter fluid from Amazon. 10 days later and no sign of them, I spoke to Amazon and they did the best they could (practically nothing) and advised they'd been sent. So I spoke to RM, who told me that lighter fluid is prohibited in UK mail and if they'd been checked then they would of been destroyed. I thought ok whatever - I can buy them in Sainos but who really wants to leave the house when you're high and eating Coco Pops?
Two days later I ordered something DNM worthy, a vendor I'd used before and usually had NDD with. 4 days and nothing. So I start to panic thinking either my postman has a Zippo and a taste for overpriced cooking spices or my mail is being intercepted (I know one failed delivery should hardly make me worry but, you know, the Zippo fluid previous).
So I order again from another vendor - few days later and nothing from them. By this point I'm freaking the fuck out cos I haven't got time between Big Bang Theory and Battlefield 4 to be attending any court hearings.
Suddenly, about 4 weeks after the initial lighter fluid purchase and two reships of my other nefarious commerce visits, I find on my doormat the 2 tins of Zippo fuel and FOUR DNM packages.
It was like Christmas in July, except this actually happened in January so pretty much still Christmas, almost.
My long and extremely convoluted point is that postal services are shit and I wouldn't freak out just yet.