now that is interesting because when you check the terms of service this stands here:
4. WITHDRAWAL SCHEDULE
4.1. EMICoin does not charge fees for withdrawing the percentages accrued.
4.2. The minimum withdrawal amount equals 0.0001 BTC.
4.3. You ("the user") may request to withdraw the earnings at any moment, including weekends and holidays.
4.4. Withdrawals are processing instantly. In case of failure blockchain respond, your request will processed within 24 hours.
Ive had the same issue when i tried to withdraw ... they just put it back into the balance