This is a bit late in coming (this post not the apology) but Nintendo have issued a formal apology via in-game notification in Super Mario Run. There was an issue that affected the “Loads Of Coins” event for a short period of time but has now been resolved. We have included the notification below if you have yet to see it yourself.
Were you affected by this issue? Feel free to let us know in the comments below
Source: Super Mario Run In-Game Notification