you can also get 9 drones by using the progarmme charles as i have done this before by having 7 iris or flax drones bring the page up to buy the final drone in this case a flax run charles and at the break point where before you buy the flax repeat advance 200 times vowala 9 drones and if before you say you get banned i have had 9 flax for 2 month ....and i play regulary
this also works for the credit bug
with selling it