Midland City review: Product promised and then asked for more money after paying. Did not ship or delivery product.

Midland City offers products for sale and claims to ship anywhere in the world with tracked shipping if you pay the $27 for Express Post. I ordered five batches of the product and paid for the Express post shipping. A few hours later I get an email saying they are having trouble shipping to my area with customs and to make another payment as they have friends who can help with customs.
This is when I knew I was being scammed and have emailed them back several times trying to get my money refunded and have not heard back.
In the beginning, when I was asking questions, they were very responsive to email and answered promptly. But now when I'm trying to cancel my order and get refunded, I get silence - no answer.