My fault is that I did not control if he dispatched cards in fact. Again, it is my fault and it is my mistake. I am a bad businessman.

But I know for sure that there is a way to send an an international letter from Ukraine in an envelope just putting a stamp on it, and in this way there is no tracking. I was hoping my partner did exactly this way. For sure there are trackable parcels that cost much more.

But it does not justify me.