send 0.001 BTC and receive 0.002 BTC back
send 0.01 BTC and receive 0.02 BTC back
send 0.02 BTC and receive 0.04 BTC back
send 0.04 BTC and receive 0.08 BTC back
send 0.1 BTC and receive 0.3 BTC back

!!! After 12hours from time of confirmation (only 1 confirmation needed)
!!! Once request per day per address.
 
Send your BTC to: 1Mx86oVTygB2bxcJ1egRcrjrXoGvByYa61