It's clearly a scam project. I remember they made many promises that they would soon list on a top 3 exchange today, and then nothing happened. Apparently many people participated in its bounty campaign and had high hopes for the reward, but in reality it's gone.
I am not vilifying BM Xcard but it seems that Xcard Bounty Manager is very irresponsible...
he should have informed the hunters that this project might be a scam but in fact, until now, it's been a little bit non-existent. Xcard has been a scam for a long time, we don't need to expect much against Xcard.