Hi Freddy, the amount you sent (.185 Steem) is too small to pay a bitcoin transaction fee, so we can't send anything for amounts this small. You can check the absolute minimum you can send and get bitcoin using the "estimator" on our web site, but I recommend sending amounts of 10 Steem or more at current pricing because the bitcoin transaction fee is a fixed amount that tends to be around $1-2 USD value right now. Alternatively, you may want to consider purchasing Litecoin instead of bitcoin if your ultimate destination is USD or Euro. I've manually refunded your .185 Steem.