User blog comment:Na299/Ways of Gold Farming/@comment-122.173.25.71-20150512112249/@comment-208.184.33.66-20150512144905

Fair question. It was working on all the similar events until now and it seems like they programmed for this series being rolled out before releasing the last upgrade/update to the game, but perhaps they could have fixed it in the interim.

You will be able to tell pretty quickly that it is working. If you are cloud saving properly so you can restore when necessary, you can manually check after you have completed a second event using the strategy whether closing the game and reopening, or some other step that will trigger the points to be counted, will provide a double payout on the level up or not. That way, you will know well before the end of the challenge whether it is working. In fact, if you want you might could save immediately before starting the challenge, try two events, see what happens and if you are still concerned restore from cloud and reenter.

However, none of this is to say that there is no risk that it will not impact your getting the car. Good luck.