I don't work for TFW8Bit, but I do know international shipping is a bit of a nightmare. When packages are shipped to certain countries, the packages can be hit with not only tariffs and taxes but flat (+expensive) fees that are tacked on by the carrier and the receiving government. Those fees by the shipping company are to cover the crazy paperwork of local governments. DHL is one of the friendlier shipping companies in the sense their fees are more reasonable. When I say reasonable, I don't mean cheap, but DHL tends to deliver the package on time (important) and doesn't charge extra fees that makes a buyer think they are just using their "fees "to pay for their executives' next lavish vacations.
When sellers ship to countries that are not international friendly, the charges/fees can be so extreme by the local government that buyers will refuse the package and demand a refund. That leaves sellers in the position where they not only don't make a sale, but they eat the shipping costs of the package and the return too. Bottom line, sellers need to selectively pick to ship to specific countries, or they get royally fleeced (which will make sellers regret making a sale).
The other issues is that buyers often don't expect those fees (or think they are too high), so they might just think sellers are trying to make even more money, and refuse the package delivery. Depending on which country, buyers are often more or less aware of these fees, so banning some countries outright (sadly) is often done to prevent massive losses.
I can't speak to your specific country, nor do I know TFW8Bit specific policies, but I hope this helps explain the problem... I wish it were different...
