I was only asked once if I had a visa, when no return ticket and checking several big bags ("It looks like you're moving...."), I showed my DTV and they accepted.
I shipped a 20ft container from Singapore, so it's definitely possible. There is duty; though I don't know how much, it was apparently reasonable. Think mine was estimated around US2500 - I had furniture, electronics, sporting goods...
I put UK, not HMPO, for Place of Issue, in HCMC and 2 times in Jakarta, and was approved for all 3. In fact, not all countries have "Place of Issue", mine has "Authority".