They added the additional 250 neucoins for me on their own. Good on them. I admire such actions from companies now a days because all the apps keep finding new ways to screw up the user experience. They have also extended the offer window till 10th Nov, so that should be helpful.
Did the same. One thing that was very useful was the ability to add multiple card bills in one-go like cart, and they all count separately towards the milestone.