The reason you got an error (if you kept the page open) or noticed the coins did not send through was because XMINT was expecting you to send 430 doge and only received 428 doge. I have manually processed your transaction to complete: https://blockchain.info/tx/cbfbd6f4f8eeee38d01c4e038406abd80c2f5af7d1cb589e86d6e4f754be7299

This is done as a safety before we launch.