Sir @blocktrades, the simple answer was Whaleshares never get cut in fractions, it always get cut in whole units. @rockg must not have enough whaleshares remaining to transact the entry. He must have used all the whaleshares, now he must pay processing fees in BTS.
Anyways sir @blocktrades, I love your service and I use it most of the times, actually more than bittrex and poloniex. It's very easy and it takes very less time to complete the transactions. I never get the chance to thank you for your services. You're an inseparable part of steemit .