If anyone has funded xmr coins coming through, I would highly recommend that you ask to send it registered/tracked and in a padded envelope. I ended up getting an empty envelope today, with just the instruction paper in it. It's not smoothie's fault or anything, but let my incident serve as a reminder to everyone that your items are not always safe.
The envelope was empty? You did not inquire with the postal office? You should have complained because it's their fault if the parcel has been tampered with. Even sometimes tracked items are lost or damaged and I've too received the courier where the entire parcel was open including the product inside.
The envelope was empty. I went to the post office, and an investigation is being run. They said that it was broken when it got into the country, but there really is no way of knowing where it was tampered with. I will just have to keep following up with the investigation.