One Foot Tsunami: Bitcoin Give and Take:

Instead, I was told that I was being limited by the portfolio’s “savePro™” functionality.2 That “feature” meant the minimum withdrawal amount was 19.007 BTC.

At this point, you can hopefully see where this is going. The system was indicating that if I deposited 0.0071 BTC (worth about $315), it would then allow the full 19.007 BTC to be withdrawn back out. Of course, in actuality it would definitely disappear with that 0.0071 BTC entirely. Cryptocurrency is the Wild West, and there are no sheriffs.