Wait a bit longer please. Remember that things can happen. People get sick, or forget to check their e-mail. International mail can take several weeks to get to you.
There is no guarantee that you will receive 10 postcards, I can not travel around the world and make people follow through on a swap they signed up on!
But if you get less than maybe eight postcards, let me know via e-mail. Tell me from who you have gotten postcards, and I will contact the non-senders and ask what happened on their end.
Thank you for your understanding.